Could this be just friendly or something more?

I was talking to a woman I know through some work friends the other night. She was laughing at pretty much everything I said - I can be funny, but some of the things I say can be kind of lame.

One thing I noticed though, was the eye contact she gave me when I spoke or when she was speaking to me. At one point she was looking at me with her head down and sort of to the side too.

I could be wrong, but this feels like a good thing?
Could this be just friendly or something more?
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