Do guys seek approval from girls they don't like (even if the guys are attractive)?

Recently I saw my old crush to the street and he seemed happy when he saw me ( he was smiling). He stood still for a second as he was observing me and out of nowhere he came to my direction ( at first he was going to a different direction). He was acting like I wasn't there and he was walking slowly and I noticed that he was smiling and he gave me the feeling that he wanted to know if I will turn around to see him. I don't understand what exactly he could do with that information cause he always knew that I liked him but he never made a move. What are your thoughts on this?

Do guys seek approval from girls they don't like (even if the guys are attractive)?
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