Preferably, post your senior photo. Next in preference would be your yearbook photo from a different year. If you don’t have that, then just post any photo of yourself from high school.
For me it was the '80s, so I looked pretty ridiculous. This is not the yearbook photo, but it is from the same photo session as my yearbook photo. If I find my actual yearbook picture I’ll post it later.
Oooh yeah that’s some '80s hair right there