This document lists common conversational filler words and phrases used to indicate interest, hesitation, or agreement or disagreement in conversation. It includes words like "um...", "really?", "like...", "uh-huh", "oh!", "uh-uh", "let's see...", "right", "you know...", "nope", "sure", and "absolutely". The document suggests completing a chart organizing these words into categories of interest, hesitation, and agreement or disagreement.