If he has a friend, perhaps invite him along; the friend can act as a control group for the evening.

I advocate the latter approach; your friend should take the high road and act honestly.

Now, he said, his friend is acting like a terrorist.

Why didn't he act as if he was pleased to see his old friend?

A long-standing friend of Hugh's since the campaign days, he acts as his chief adviser.

The French, on the other hand, heard the rest of the statement: "friendship is accepting that one's friends can act differently."

Other family members and friends also act as interpreters.

In case of serious disputes, those same friends act as arbitrators.

Now, I discover that my friends have acted against me.

And then he realized why his friend was acting this way.