When someone you would prefer not to talk to, engages you in an Extended one-sided conversation, that the only possible response is to say uh huh and let them keep talking.

usually it works like this

person 1: "hey man did you hear that that watchman movies out this friday?"

Person 2: "yeah man im not sure if thats gonna be good tho."

Person 3(forcer): "omg that movies gonna be good it gonna... bla bla bla bla bla"(you so dont care)

Person 1 & 2: "uh huh"

Person 3: bla bla bla bla

Person 1 & 2: "uh huh"

Over killed, over used, too much off.