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How to get to know a guy
Observe him in school.
Often you can tell a lot about a guy by how others act around him, who his friends are, what grades he gets, etc.
Listen in on his conversations.
If you see him talking to someone before or after class, sit nearby and listen or walk by and try to catch a few of the words. Try to get in a group project with him and make sure you start a pleasant conversation.