What does it mean when a guy sends you pictures of himself?

Anonymous
So my best friend is a guy and recently he's sent me quite a few pictures of himself. Not bad, just like his hair, chest,feet random stuff like that. Like last night he made a necklace and was showing me and took a picture of it when it was on him, when he could just have had it on a table or something. Is there a reason he would do this?
What does it mean when a guy sends you pictures of himself?
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