He smiled at me when I gave him an awkward face expression?

I was trying to throw away my trash and I bumped into this guy named Trey. He said sorry and I didn’t reply, but not because i’m rude or anything. It just took me a
while to process what happened. Anyway maybe 30 seconds later, he was almost out the door so I look up to see him staring right at me. I was embarrassed because he had caught me. So I gave him this look and was looking away when I did it:
He smiled at me when I gave him an awkward face expression?
So I look back again, I see him smiling big at me, laughing too? I think. Then he shook his head as he continued to walk away. Does this mean he’s possibly interested
He smiled at me when I gave him an awkward face expression?
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