Guy complimented my backpack?

I realize this is a weird question, but the other day I was standing waiting for the elevator in a public setting and this guy standing nearby is like, "I like your backpack" and smiled at me. There is nothing special about my backpack, it's a 3 year old Oakley that doesn't look amazing (it's never been complimented). I get the feeling he was hitting on me, trying to start a conversation. Any ideas? I'm a guy by the way.
Guy complimented my backpack?
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