Just have fun and be yourself. Also, try and respect any rules set by parents or local laws. Nothing is more of a downer than a set of hand-cuffs or being grounded.
You dont need dating advice because being you will make the whole date okay. If the guy likes you and keeps wanting to go out with you thats because he likes you for who you are not because you got...
When speaking to the person you are attracted to just relax, be self- confident, and act like you know what you are doing at all times, even if you have no idea whats coming next!