The Charm skill is used to befriend others. You make Charm Tests whenever you want to change the minds of individuals or small groups, to beg, or seduce. You need not make a Charm test every time you talk to an NPC; only when you want to change their opinions of you or convince them to something for you such as giving you a tip, a dance, or a kiss.
A Charm Test can affect a number of targets equal to your fellowship bonus and your targets must all be able to see and hear you clearly , and understand what you say.
A Charm Test typically takes one minute.