Why did he looked like that?

I work in a office and there was this guy who is in the same office section like me. I tried to help him as he had a problem thats why i stood up and went to his place. He sat there in his chair while i stood there and talked to him. I than noticed how his eyes shifted from my face very quickly down to my waist..

now im wondering if he was attracted to me or if it was by accident? Why was he looking like that? Did i maybe looked weird to him and wore a strange outfit or did i looked a little bloated? Or is it normal to look like that and it doesn't mean anything?

Why did he looked like that?
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