The best way to show a girl you like her is to just be nice to her. Smile at her. Be friendly. Get comfortable with just light conversation. Talk about school. Ask her about subjects, what she likes, what she thinks is hard, what did she think of the teacher, etc. Just be friendly and non-threatening. After awhile when you feel more comfortable with her, then you can ask her if she'd like to go to the park, movies, etc. But take your time. Don't rush it. Girls don't like to be rushed.
And I agree with the above poster. Your penis is fine. You will be doing a lot of growing over the next several years. Don't worry about it. Nobody really knows or cares except you, anyway. :)
Bro, im 15 and my penis is only 4 1/2 inches. Thats tiny compared to an adult. Dont worry about it. Itll grow, and even if u fall a bit on the short side it doesnt matter. Besides, u have fingers too. They get the job done aswell. when u get to the point where ur ready for that kind of stuff, ask the girl what she wants.
Hope this sorta helped :P
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