I am attending PyCon this weekend, in my hometown. How many other Manifold users will I encounter?

To count, we must:

1) Engage in some sort of greeting (wave, high five, say hello)

2) Already know each other to be Manifolders, or establish that we both are in the course of conversation (even if we already know each other).

Ideally, we’ll both bet and or comment about the encounter on this market as social proof.