Guilds and Societies of Gwent

From publisher blurb:

Below are descriptions of all of the major guilds and societies you will encounter in the World of Gwent. These groups don’t necessarily make a character more physically powerful, but they do establish contacts that work to make them more socially powerful. They are all quite different, but they all have three things in common: joining requirements, benefits, and a secret handshake or gesture (be creative with that).