|“I can't get over how small you are!”
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Gestures are special animations which players can activate during co-op gameplay. Gestures are contained as separate items in the 'Gesture' slot. There are eight default gestures for both Atlas and P-body, and 8 purchasable gestures.
Performing a gesture during the co-op campaign will at times cause GLaDOS to make a satirical comment upon how much you resemble 'humans'.
Performing gestures also act as criteria for certain achievements.
List of gestures
|| Air Show|
Perform 2 aerial gestures before touching the ground in co-op
|| Asking for Trouble|
Taunt GLaDOS in front of a camera in each of the five co-op courses
|| Can't Touch This|
Dance in front of a turret blocked by a hard light bridge in co-op
|| Empty Gesture|
Drop your co-op partner in goo while they are gesturing by removing the bridge under them
|| Friends List With Benefits|
While playing co-op, hug 3 different people on your friends list
Perform all 8 gestures of your own volition in co-op
|| High Five|
Celebrate your cooperative calibration success
|| Narbacular Drop|
Place a portal under your co-op partner while they are gesturing
|| Rock Portal Scissors|
Win 3 co-op games of rock-paper-scissors in a row
- The purchasable gestures can be performed using the command "
taunt gesturename" in the developer console. This is however, not possible to do when playing with a PlayStation 3 player.