Assuming you're asking about a puppy's ears, there are different ways of getting its ears to stand up and you should ask your breeder or veterinarian to show you the techniques. Done incorrectly, you can permanently damage the puppy's ears.
i don't think there's a way to just make them go up, it's a natural course. they will go up eventually, you just gotta be patient, and don't panic if one starts to go up before the other, mine did...