How do I know if a girl is dropping hints and make a move?

This girl showed up at the community centre where I was playing table tennis with friends. I noticed she looking at me when we were resting on the bench however I didn’t think much. We did play one game against each other however I didn’t have the chance to ask for her name.

Now, usually I wouldn’t think twice or even make a post about this but my friend got into my head. When we were leaving, my friend told me that he also think the girl interested in me because how much she was looking at me when I was in the conversation with my friends.

ik it is totally normal for a girl to check out a guy but my friend got me thinking here. Did I fumble my chance or it’s just my mind going crazy?

I gotta come back to the community centers next time and start the convo if she’s coming.