One last question plzz?

ive already asked a couple questions and ive come to the decision to becoming friends and flirt with "her". but the only cl we have together is p.e ( and im not that muscular so showing off wont help. LOL) how do i get closer to her and flirt when we're constanly being splt up into random teams and groups? if it was like math cl i could sit beside/near her, but this is confusing. and i dont wanna have to wait till next semester and then HOPE shes in one of my cles. hlp me out here plz. LOL