Finger of Suspicion
A term (abbreviated FoS) used to formally indicate "you're being watched." It can be an implicit way of saying "I might vote for you"; typically in cases where the person doing the fingering does not want to actually vote the suspicious player.
The exact body part used where "finger" is has been known to vary according to the amount of suspicion used.
Very uncommonly, FoS is used as a game mechanic; however, they can still be an important part of games when used as pseudovotes.