According to scientists from the University of St Andrews in Scotland, orangutans use 40 body language signals to communicate.

(The gestures were used to communicate ‘I want to play’, ‘give it to me’, ‘go away’, ‘follow me’, or ‘stop doing that. Gestures included things like back rolls, placing objects on the head, blowing raspberries, nudge and shoo movements, hand to mouth ‘begging’ gestures, hitting the ground, hair pulling, biting the air, swatting, grabbing, and walking in tandem with another individual. It sounds like chucking out time in Nottingham.)