Does he remember me??

There is this guy and we have mutual friends. 2 years ago I saw him nearly every day and he always greeted me when he saw me.He's back in town this year and came to chat to my friend (not the mutual friends but he knew this friend 2 years ago also, the same way he knew me). He completely ignored me and I was just sitting there while he was being chatty to her. Does he not remember me or is he just not sure who I am or something?
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I saw him again today at the beach and he smiled at me and my other friend (not the same friend I mentioned before). And he looked at us a lot. Does that mean he remembered me or he just liked me or my friend?
Does he remember me??
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