Use your ''GAYDAR'' to spot the ''GAY ONE'' (photos included obviously)?

On person number 1 looks gay but his profile it says he is interested in women, so Im guessing he isnt gay (and if he is, he might not be 'out'". No offense, but person #2 ross looks kind of like he would be a douche bag just judging from the profile photo and music intrests. Person 3 looks kind of gay but i wouldnt say for sure. Im am going to say person 4 is for sure gay. He has an ear piercing in his left ear. Im pretty sure that is an old way that some men let people know that they are gay by having on of their ears pierced.