I was at the beach this afternoon and there was a girl that was with us. We're kind of friends but it's not an established friendhsip or anything so it could slip the other way.

Anyway, at some point we were all chatting and I was just running my hands in the sand, as if I was caressing it. I noticed that she kept looking at it all the time. She didn't look at me more than normal, but she was staring at my hands in the sand for wayy too long at times.

Is that an IOI? And in general, is a girl watching you do something slightly suggestive when there's stuff going on around her a possible IOI?