Why did this guy ask me this on facebook?

[MsKnowItaLL]

On facebook this random guy asked me if it was really me in my profile picture....& another guy couple of days ago ask me what ''what do u do?'' , I didn't reply back because I didn't know what he meant...what's with these msgs?

[Russell]

first question: is that picture you, second question: what do you do, the first one means he thinks that pic might not be you, the 2nd is asking what you do for a living, and both are weird coming from a random dude

[zanaeja]

Well some people don't use pictures of themselves on there Facebooks they use someone else's pictures and when someone says what do you do there more than likely asking you what's your job