<human>: Summarize the given text in a few sentences.

So I have gone on a couple dates with this girl that I like and everything seemed to be alright, but the thing that is bothering me is that I don't know how to act. Everyone tells me to "be yourself" but that is the problem. I don't know what the real me is! I don't know what the "yourself" is in this situation. I have friends and I act in one way with them, but when it comes to girls I become very (almost too) down to earth and serious. I cant crack jokes at all with them but any other time is perfectly fine (with friends and such).
 
Another problem is that I usually always like the girl I can't talk to. Its not a problem to actually say hi and things, but I always seem to be that quiet guy that doesn't show emotion when around her. I try to smile on dates and every time i am around her, but as I said previously I change dramatically with different people therefore I have no clue about who the "REAL" me is. It is starting to bother me quite a lot.
 
Any tips would be helpful and I thank you for them!
<bot>: I don't know who the "real" me is. I almost change to a completely different person when I am around the girl I like.