Talkin’ Tamarin

This is an alarm call cotton-top tamarins use when they are suddenly surprised, or if they are startled by a loud noise.  If one member of the group is startled, other cotton-top tamarins will make this call.  What do you say when you are startled?
 

This is a call that is given by the entire group.  One member of the group makes a quiet long call and the rest of the group answers with the same call.  It is given as a way to reassure the group that everyone is present when they hear an unfamiliar sound or vocalization from an unfamiliar animal.  How do you let your friends know when you might not be able to see them?
 

Cotton-top tamarins may scream like this when another cotton-top tamarin tries to steal their food.  What do you do if a friend tries to take food from you?