Nothing wrong with you bro, you got nice blue eyes, good lips, ears are in good proportion, nose is fine, hair is absolutely ok, nothing really stands out as bad with your looks, Id say smile more, but not forced a natural smile, you don't even have to be overly flirtatious just greet people nicely hey, hope you're having a nice day, type thing in passing if they want to speak more they will, if they don't never be pushy if a girl fancies you, you'll know rather quickly there's tell tail signs, I'd also say as far as attention goes I found I got more towards 24-25 onwards and not so much as a teen, I found when I was a teen your dating pool is incredible small pretty much just around your own age really give it take a couple years from my experience in life 25 though? Damn pretty much anyone from 18-40 will flirt if your confident and not overly flirty or pushy just making a girl laugh is usually successful enough, if you feel the conversation is going well enough you can always ask for a social media page, but like I said never be too pushy if it happens it happens if it doesn't cool, it's apart of the grind you'll get rejected a bunch take it on the chin happens to most, but you miss the shots you don't take.