Sometimes you are in a conversation that is so boring it sucks the life force out of you. The good news is you can completely tune out during the conversation and do something more useful in your head. Just remember to feed in one of these fifteen generic responses to convince the other party that you are listening. These come field tested, I have used these to prolong conversations that should have died!
1. That makes sense, that was the correct thing to do.
2. Interesting.
3. I disagree with that, but I guess in that situation I might have done the same thing.