Marked vs. Unmarked

Recently I experienced a situation where I felt marked. Last semester I was getting lunch with my dad at a pizza place in the Greenbelt Plaza. As soon as we walked in I felt almost out of place. When I looked around, there were very few other white people. I felt as though some people looked at us and were wondering why we were there. It was an eye opening experience, and now I get a sense of what other individuals experience who are in the minority. I really didn't mind being there, but there were a few times where I felt slightly awkward. I was marked as being white.