I was in a meeting where we were planning out a huge client presentation and one of the guys who was there just went off on a complete diatribe of how he would go about adding some flair. He was known for being a loudmouth, and after about 15 minutes of his plans, the team lead just literally put up his hand and waited for him to stop talking. He sat there for 30 seconds in silence and then moved on. No addressing anything that was just said.