They are all fans that have been pre-screened that are made to look random

Even as few as three months ago, this A+ list mostly movie actor would mingle with fans while he was filming.

He was always taking selfies with them or signing photos.

Now, when filming in public, he never talks to fans.

OK, let me take that back.

He does, BUT, they are all fans that have been pre-screened that are made to look random.

Tom Cruise

Source: http://www.crazydaysandnights.net