With the recent Facebook poking arrest, a lot of people want to know what it means to “poke” someone on Facebook. A Facebook poke is basically a way of waving at someone from across Facebook. A poke on Facebook is a shorthand way of saying “Yo, I’m thinking of you.” In addition to wondering “what is a poke on Facebook”, a lot of people wonder “When you poke someone on Facebook does anyone else see it?” Keep reading for the answer to that, and all the information about poking on Facebook, including how to do it, and how to know if you’ve been poked on Facebook.