If you can't understand what I'm saying then let me say it even more forward then I all ready have. It's on his profile he's "male" and on the comment of his photo it says 21st b-day cake. Then you have the picture of the cake itself which isn't a blurred photo by any means. Therefore, it's not that hard to piece it together, hence not needing any "verification" in the least.
And if he is potentially lying, well that isn't your business or anyone elses unless this person does something against you or anyone else on a personal level.