Have an opinion?
Depends on what were you doing
Then there maybe two possibilities, one, he was looking back to see whether you were staring at him or not due his interest in you or he was just staring at you, again, due to his interest in you.
He also looked at my face and then down my shoes and by then I looked away out of shyness. He carried on looking for about seven seconds. I've put on weight... Could it be that?
Yes he definitely seems interested.
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