portal 2 coop how do you use microphone?

Answer 1

It depends what system you are using, for PC plug in a typical mic, for X360 or PS3, start a party and invite your friend/other player.

Answer 2

It depends what system you are using, for PC plug in a typical mic, for X360 or PS3, start a party and invite your friend/other player. answered 4 hours ago by giantenemycrab0 Adept (820 points)

if you choose PC, I think there is a key binding for it or hands free talking

Answer 3

In settings, you can choose which key to use for push-to-talk, or simply use skype.

Answer 4

Just plug it in and bind a key for PTT.