"Post A Girl"

I think this is a great idea. The social norm is definitely to have the profile picture be of your own face, and having someone else's face will not only bring a shock, but it may lead to confusion that she is the one posting comments that you are actually posting. (I often look at the pictures more than the name to see who is commenting/posting). I think it would make more of an impact if it was her face, and not the back of her head. If one of my friends changed it to be the back of one of their friends heads, I would assume it was because of an inside joke or just to be goofy. The front of the face would make me pause more. Overall great idea and I think you'll get a strong response.

I think this is a really interesting concept! I know that if I saw a male post a female's profile picture, I would think they must be in a relationship or be very close. Also, just having the back of her is an interesting idea too since it might make the viewer question even further why you are posting this girl as your new profile picture. I hope that you get a strong response and people question this via comments.