In Portal 2 when I start the co-op mode I can't get past the gesture test.
It shows me the prompt that tells me I have to press Q in order to gesture, but when I press the key all I see on screen is a red circle with a slash through it. I checked my backpack and sure enough it doesn't have any gesture. Is that what the symbol signifies? Do I need to unlock a gesture in singleplayer mode first to play co-op?