Do We Have This
Character is on the lam or has been set up by a Big Brother
government. He goes someplace -- a bank, a gas station, a post office -- and while he's buying his sundries or otherwise taking care of business, he notices a wanted poster with his face on it, or worse yet, sees on a TV in the background a story about his being wanted. He immediately starts acting differently, perhaps becoming boisterous to distract attention from the report, perhaps mussing his hair up, putting on a hat and sunglasses, and shrugging into his jacket.
Definitely seen this in Enemy of the State