This is that game with one addition: the caller says your name.
A friendship often begins when someone remembers your name. In that moment a stranger becomes someone recognised, and a connection begins to form.
Everything else in the design follows from protecting that one moment — which is why the circle cannot rank anyone, why the caller's job goes round, and why the pronunciation belongs to the person whose name it is.
sey belongs to everyone
The rules are released CC0. Play it, teach it, run tournaments, print it in a textbook, build your own app for it, sell equipment for it. No permission is needed and none can be withheld.
B-Sey℠ is one implementation of sey — the app linked from this site. That name is not free. The sport is.
Write the sport lowercase and unmarked: a sey circle, let's play sey.
Read further
The design is written out in full in the paper, including the parts that are still untested and the predictions that could falsify them. It is CC0 too.
Go and play
Three people and something soft to throw, if the phone does the calling. Four if one of you would rather. That is the whole requirement.