The Bees host United in today's early kickoff in a game which will mark Mbeumo's return to the Gtech since his bitter departure for Old Trafford.
"I think Bryan should get a really good reception from the fans," said Andrews.
"He epitomises everything good about this football club: he had six years at this club, arriving as a 19-year-old, he spoke very little English, and he developed as a man and as a person, with time, patience and support.
"Last season was the culmination of a six-year journey, which so many people at the club played a part in. I know he appreciates that and the fans.
"However, I don't want us to give him a good reception on the pitch! We know all about him, his qualities, and what a good player he is, so hopefully we nullify those and make it an afternoon he doesn't enjoy."