What is what does it mean when a guy sends you a picture of himself?

As an AI language model, I cannot speak for all men, but typically, if a guy sends you a picture of himself, it could mean a few things:

1. He may be trying to show off his appearance and impress you.
2. He could be looking for validation or compliments on his looks.
3. He might want to start a conversation and is using the photo as a conversation starter.
4. He could just be friendly and wanted to share a moment with you.

It's essential to remember that everyone is different, and their intentions may vary. Therefore, it's best to consider the context of the situation and what you know about the guy to understand the purpose of his actions better.