Trivia: When Buzz & Woody are on RC, it very briefly shows Andy's little sister in the car, watching them from the mirror. In the background, we can hear "Hakuna Matata" from Disney's "The Lion King" playing on the radio. (01:12:05)
Trivia: The moving truck's license plate is "MLY1K9" - a reference to Pixar's resident sheepdog, Molly (one canine). (01:07:50)
Trivia: While Buzz is riding RC chasing after the moving truck, when Scud runs into the intersection causing the car pile-up, we see the building "Virtual Realty" the real estate company that sold Andy's house, and the bowling alley "Luxo Lanes" named after "Luxo, Jr" the first short film produced by Pixar in 1986. In the car pile-up, a blue car's license plate is "RES1536" which is also the Pizza Planet truck's license plate number, and the number's taken from Toy Story's film resolution - 1536 x 922, the RES stands for resolution. Also, on the teal car's tire it reads "Tigger Paw" named after Disney's Tigger, and a play on the brand Uniroyal Tiger Paw tires.
Trivia: The sound the globe makes when rolling towards Buzz is the exact same noise as the boulder that rolls toward Indiana Jones in Raiders of the Lost Ark. (00:27:10)
Trivia: The moving company, "Eggman Movers", is named after art director Ralph Eggleston. (01:08:30)
Trivia: When Woody accidentally wakes up Sid's dog, its growl is that of the T. Rex from Jurassic Park.
Trivia: One of the books on Andy's bookshelf is "Smyrl, Smyrl, Twist and Twirl". This is a reference to Eliot Smryl on the modeling team.
Answer: Baby face taps RR TOYS COME OUT. Telling the other toys to come out from hiding. Pixar stated this in their Toy Story character overview.
But why "RR"?
"RR" is shorthand for "Message Received." Babyface is telling Woody that he understands Woody's problem and then taps out to the other toys to come out.