The "You're Not Listening" technique: a time-tested method for making sure everyone knows you're paying attention, while actually, you're just pretending.
By repeating back exactly what the other person said, but with a healthy dose of condescension and eye-rolling, you can make anyone feel like they're being totally understood, while actually, you're just stalling the conversation.
Example: "I know, I know, you said you wanted to take a break, but I'm pretty sure what you meant to say was 'I'm going to go grab a snack'."