LOL- don't feel badly at all. I walked by and waved once when we had a break. I was sitting at the same table as you during lunch, but you were busy. I was chatting with those nearby me and my husband. It is just easier for me to recognize you (loved your music video) than for you to recognize me. During the conference I was on the other side of the room away from the door. I knew sitting near the door would be too distracting for me.