This is my first post so sorry if I do something wrong.
My question is about a situation that happened to me the other night. I am in college so most of my interactions with girls is at friends house parties. I started talking with this one girl and it was going pretty well. However the conversation got thin and I made and excuse to walk away. Later I tried to talk to her but she just kind of brushed me off.
What are good ways to approach a girl that you have already approached once?