TIP #1: *JUST LET HER KNOW YOU EXIST*
For the newbies...
Don't reject yourself before you let her know you exist as a human being on this planet. How pathetic is it that you reject yourself before she even gets to know you as a human also live on the earth with her.
Just because she has a pretty/symmetrical face, you think she's better than you or above you?!
Bro... don't be a pussy for the rest of your life... Approach her... see if you have chemistry... see if she's up for meeting for a drink... and see her another time...
OR
JUST GET REJECTED... There's no other way through it... you have to get rejected thousands of times to become great at anything... same with pretty girls