Thought 1: Is this person here to hurt me? (check that my knife is still where I left it)
Thought 2: Okay they don't seem to want to hurt me, is this person here to take something from me?
Thought 3: Okay they don't seem to want to take something, but is this person worth letting them steal time from me?
Thought 4: Okay I'm going to let them steal some of my time, let's see how this goes.
[Branching Path]
Thought 5a: They proved worth letting steal time, we will continue to talk in the future.
[or]
Thought 5b: They did not use the stolen time well, it is time to appear disinterested and cold until they go away.