Can toi realise someones gender par his picture?

Sometimes I can, but not always.

Not really. There was this girl named Christine and I swear she was a guy until I heard somebody call her. And there was this guy (I think) and I think he may be a girl.
And toi probably don't know me because my hair looks really guy-like -.-"

no u cant it takes one to kno one:-)

Usually, I can. par some strange luck..

[Usually...though not 100% always!

Yep. All the time. I'm good a that kind of stuff.

Nope, for the longest time I thought this girl in my class named Mackenzie was a boy because she used to dress like a boy. I feel bad for thinking that because she really is a nice person and there's this boy named Jacob whom my mom always thought was a girl because he has really long hair.

No there was this girl she was in my class and I thought she was a guy I finally found out she wasn't a guy because the teacher put as partners for a project and I found out her name was Megan