Last night I went out around 9 pm to my Fraternity house for a social with a Sorority down the street. While we were at the house I generally chilled; made a bit of small talk but nothing major. One of the girls at the social, we'll call her O, seemed pretty receptive to what I was saying/doing. I employed some light kino and exchanged banter but nothing major. Later, we all went downtown to the same bar and before I left with my buddy I got her number and a hug.

Later in the night I pretty much forgot about O and her friends because of another girl, M, who I would end up K-closing before I turned in for the night. I didn't think about her again until I was walking back to my dorm around 1:30. I passed through another dorm to take a shortcut and saw her sitting in the lobby. I was dog tired and had a sore throat so I just said a quick "hi" and started walking away, but then I noticed in the reflection of the mirror that she was staring at me walking away.

I'm probably overthinking this but O is one of those girls that likes to stay on her phone ALL THE TIME. She was on her phone at the bar (not while I was talking to her) and even when we were playing drinking games at the Fraternity house. It was surprising to me that she was paying this much attention to me, especially after I hadn't really done too much to escalate.

So, 2 questions. What does it mean when a girl stares you down when you walk away? And is the lead strong enough to merit hitting her up for a day 2?