I hate advices so I'll go straight ahead and give you answers.
1) You're nervous around girls
-Be friend more girls despite their images
2) You like a girl and want her to notice you
- Make lots of female friends and ask for their opinions then come up with an answer that is most fitting to your questions
3) You want to do things in a way that would be right and not weird.
- Completely open yourself and get in touch with the person you truly are and bring it out. Be yourself. Be comfortable being yourself. Falling for someone without knowing them will only make you lose sight of yourself and leave you open to all sorts of negative things such as being used or played.
**No matter how hard you fall in love with someone, if you want to understand what kind of person they are, never lose sight of yourself**
LOL if hes nervous around girls..how can he make alot of female friends...love is blind..take your pick...you get a 5% chance you might find someone that fits you...girls...sexy appeal but bad attitude in 5 months..you will hate it...dump...regret it for a few months maybe cry...the good attitude one but ok looking..you will like for 1 year-3 year...see that theres alot of sexy girls around...bam dump...1-5 relationship later...regret...truely its hard bro haha not a simple concept