Does my crush like me even though we've not really talked?

Ok, so I like this guy, but I've only ever talked with him (really) once... and it was only to ask him a question to win an argument with a friend.
I've liked him for around 3 to 4 years, and didn't start seeing the signs until this year... I was hanging out at a camp with some friends and at every meal he and his friends would wait until we were done and starting to leave to get up to do the same. I constantly see him glancing or staring at me and don't know what to think. Any hints or tips from guys out there?

Does my crush like me even though we've not really talked?
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