She's was an old friend of mine who I hadn't seen for about 2 years. As we were talking, she kept glancing around at the environment we were in. We kept the conversation going for quite some time, so I doubt she was losing interest. I'm just curious as to what this could mean.

Edit: Just want to add some things.

First thing I did when I saw her was give her a hug. I think she was just nervous and was being stimulated by the environment. Saw her again later that night and hugged her again.

Oh, and I totally forgot to add that in the middle of our conversation she asked me if I had her number. I didn't so she immediately gave it to me and told me to text her later that night. I did, but we never met up because of the large venue and crowd which made it hard to coordinate such plans. Plus, she was with about 5 other girls. Also, I didn't want to seem like it was my goal of the night to meet up with her. A part of me was almost glad that I didn't because it shows that I am a social person and had other things to do and my happiness wasn't dependent of having her with me.