Do you ever notice people staring at you when you review the footage back?

At some weddings, when I review the footage I notice things that I did not notice during the wedding day, some people I catch staring directly into the camera - the same people multiple times.

Now after realizing it - I get quasi self conscious. Are they staring at me because I did something? Are they nervous to be on camera? Am I being too intrusive with my camera?

Anyone else run into this?