Girls, Should guys not smile in profile pics?

A while back I posted a picture I took and asked if I should use it as a profile pic, because honestly I'm not good at social media lol. Anyway I was smiling partially cuz the girl I'm into has complimebted my dimples before... And anyway I was told not to smile for profile pics by some of the guys...
so i was wondering what's the girls oppinion on whether guys should smile for profile pics?
Girls, Should guys not smile in profile pics?
Post Opinion