He might act kind of strange and fidgety around you but nobody else. It probably means he likes you but does not know how to say it!
He says the dumbest things just to keep talking, or he may play stupid to get your attention in general.
He tries to hold your hand or starts talking dirty as a joke (it may even involve you). But don't stereotype guys, not everyone is going to make dirty jokes or try to hold your hand.
He might ask only you for stuff he doesn't really need just so that he can get your attention, or he just wants to small talk or even make you laugh!
He calls you at random times or calls you a few times a day just to say hi.
If he says 'hi' to you, multiple times, and it's just to get your attention.
He likes to play around a lot and make up nicknames. He'll also pick on you for fun because he knows it will be a funny joke and not serious to make you mad. When you're angry he will feel sad for you and tell you he's sorry if he bothered you. They will also protect you and he'll try to defend you when someone makes fun of you.
He will respect you and want to be honest and real. He'll also tell you the truth about yourself, but never say it disrespectfully.
I think if a guy likes you he'll be touchy-feely or he'll like keep "accidentally" bumping into you just to touch you.
Guys will also act hard to be mature when there around a girl they like and be over protective of her.
You'll know that a guy likes you if he starts following you wherever you go and makes eye contact.
One of the most obvious signs that a guy likes you is that he will always stare at you even if he doesn't know you. Boys will just stare at you from a distance hoping that you will notice them or sometimes he will stop looking at you until you look away. If you want to see if he looks back when you stop looking at him, you can look at him from the corner of your eye.
His pupils dilate when he talks to you.
When you talk to him he seems to be hanging on to every word.
You will know that a guy likes you when he loves to play with your hair and really annoys you that much.
He'll use any excuse to touch you. Like if you're wearing a necklace he'll move closer and grab it to "look at the necklace" or he'll play with a tie on your shirt or a ring. Or if he points at something in the distance, he will grab your arm. They also pretend to fight with you by pushing you (again, physical contact). He might stand extra close to you and lean on you and kind of bump shoulders with you. High fives even. Anything to get close to you. Remember, though, that sometimes people are just being friendly and don't mean it as they like you!
He play fights with you and teases you playfully. A guy does not like you if he is mean to you. I don't mean making jokes about your height or something like that, I'm talking MEAN... he definitely does not like you. Because in my opinion it is rude, disrespectful and definitely immature!
When he's talking to you he'll touch your arm or put his hand on your shoulder.
He will always make eye contact with you even when you're not talking he'll just look at you and smile... and he can't stop smiling.
If you're going to the movies he'll choose a scary movie over a comedy or anything else because scary movies are an excuse for you to be comforted by him or cuddle.
One sure fire that you can tell if a guy likes you or not is. If you are in a bad mood he will try anything to make you smile. Also he will try and get close to you even when you are crowds away. Or at least he will try and catch your eye.
I've found out that if a guy likes you, he'll act nervous around you sometimes and always try to be around you.
He might act slightly jealous when you're talking to or about another guy and then he'll want to know ALL about him so he can try and work out if he's got competition.
If a guy accidentally hurts you or upsets you he'll use it as an excuse to get a hug.
Some guys even in adulthood will act like children and pick on you.
He enjoys you looking at him.
He gives you all the attention in a group of people then he realizes that he's been focusing all his attention on you and then quickly says something to someone else to try and cover it up.
He makes a lot of eye contact and usually will not turn his head when you look at them him that crazy feeling smile between you two.
He tries several different ways to say he likes you if he doesn't know which way to approach you from.
Not every guy is the same. One might fetch things for you, carry things for you, sit with you at lunch, laugh at your jokes.
When there is a crowd of his friends or people around you he will wait until everyone leaves or he will hesitate to leave until he gets you on your own so he can talk to you. Also eye contact is a big clue. He'll be really nice to you or compliment you.
When you're sitting right beside him in homeroom and he purposely moves his arm so it is right up next to yours and doesn't move it away. You definitely know when you drop stuff in the hallway and he always picks it up for you.
If a guy is shy, he will try to be near you, but wait for you to say something before he has the courage to talk. He might seem visibly nervous.
With the less obvious boys they'll do something for you even if you're just joking around about it.
A guy likes you if he notices a lot of things about you like your outfits, hair, jewelry, etc.
He'll ask for your number.
He will stand really close and tall when he is talking to you.
If a guy likes you, he will show interest in your interests. He will not compliment you to your face as much as he does to your friends.
The king of all signs is that a guy will worry about you so much when you're ill. He will always ask about you and make sure you get well soon.
He may joke around and say -/+ things about himself. That means he just wants to impress you or get your attention.
All guys are different and you never know what they are thinking. Guys are strange and absurd, but follow your heart and you may find Mr. Right.
If he likes you, then he gives you special attention, being totally oblivious to everyone else in the room. You feel like the only person in the world that matters.
He'll try to show off his physical strength, by lifting something or someone heavy, and then looks at you to see if he's impressed you.
Listen to your instinct, you'll just know if he likes you.
This is coming from a guy, look for these signs - trying to make jokes. Protecting you a lot. Trying to make you happy while you're sad. Holding onto you not in a sexual way but like wrapping his arms around you. Smiling at you a lot. And the last but biggest one is if he really likes you he'll give you a lot of respect. But all guys aren't the same, keep that in mind.
If he looks like he wants to say something to you, but says nothing.
If his face turns red when he thinks of you or you talk to him.
If he slinks off when you are coming closer to him.
I agree with the above answer, also.. If his friend and him pass by you and then walk of giggling meanwhile he's looking away or turning red. And also if his friends stare at you a lot.
If he's a shy guy he will try sometimes to show you he likes you.
Sometimes it may seem like he hates you. It's just that he doesn't know how to act around you; but guys who are not shy will just plain tell you.
He'll have the same emotions as you; he'll be sad when you are, angry when you are, happy when you are.