Inadvertently Hurting Others

I saw Stephanie Fried a week ago when I was in the econ building.  I was on the bridge and I think she was looking up at me, not sure though.  When I turned my head and looked down, I think she looked back down.  Was she looking at me?  I'm not sure, but it looked like she was upset.  I still remember several months ago, where I looked down at my phone and back at her again, waiting to see if she would greet me.  Dumb move.  I'm guessing she interpreted as me not knowing her.  I might have her feelings with that move.  I need to take better care at how I react around people because they tend to misinterpret my actions.