He might exchange information with a contact in his first group.
We made a bargain with him to exchange information for our services.
"I talk to all of them and we always are exchanging information."
Two people in the same fix would certainly exchange information.
That they exchange information with each other frequently, but never in groups of more than three.
They don't view it as just for recreation or a place where you exchange information.
By our agreement, we were to exchange information and services.
"You should be able to exchange very basic information already, Captain."
I think it would be better if we worked apart and only meet to exchange information.
It needed only that for the two men to exchange information.