You’ve probably heard this many times, but just be yourself. You can’t force someone to like you and when you’re with a guy for awhile, he’ll eventually see what you’re truly like anyway. Make that guy fall for the person you really are. I’m sure you have great qualities in you that guys would fall for. 

You’ll be interested in plenty of guys in the future so don’t get yourself hooked on just one guy. If it’s obvious that you’re interested and he doesn’t seem to be catching on then just move on to the next.

Nothing wrong with that. As long as you’re mature and responsible enough of course. If he has more experience than you do, I would suggest to be more cautious and don’t let him pressure you into doing something that would make you uncomfortable.

To be completely honest with you, I think it’s difficult to determine whether a guy genuinely likes you or if he’s just flirting with you. I guess the only difference is if he invests a lot of time with you. Like if he calls you or messages you often, the way he talks to you, if he goes out of his way to do things for you, if he offers to do things for you, etc.

Tell him that you’re looking forward to hearing from him. I think in most cases, when a guy is interested in you, he’d make the first move anyway.