Best "small moves"

By “small moves,” I mean subtle, manipulative actions that help a player gain a slight edge. These aren’t game-winning moves, but they showcase a high level of skill and require a deep understanding of the game to pull them off.

Two examples come to my mind while making this post. First, Chelsie persuading Mackenzie not to prepare a final speech by casually saying things like, “I’m not even going to prepare a speech,” and, “Your game speaks for itself.” Second, Steve growing out his beard after Vanessa mentioned she liked facial hair, which helped reinforce the image of him being her puppet.

I find these types of moves incredibly impressive and fascinating. What are some other examples of “small moves” in Big Brother?