Girl from BILD 1

I bumped into this girl I met in BILD 1 tonight at the Village Market.  Her name is Marissa or Marcella, I'm not sure, I think she is one of the RAs in the Village.  We talked about classes we were taking this quarter and our conversation was decent.  We catched up a bit etc. mundane stuff.  I did notice some conversational flaws on my part.

1. She made a joke about how tough OChem is and how she'll buy a gun for me.  I did not smile until about 1.5 seconds later.  It might have made her nervous.
2. Her eye direction and facial features indicated that she wanted to end the conversation, but I continued the conversation about 20 seconds longer than I should have.

Other than these flaws, the conversation was...normal.  Almost absolutely normal.  I guess I'm making progress, but I personally feel as though I've taken several steps back in some regards.

Note to self:  When a person makes a joke, smile and laugh immediately, and say something funny or agree with it in return.  Know when to end a conversation.