A normal/typical charm makes the caster your best friend.  In this case, think of the charm as something that suppresses inhibitions, but not reflexes.  The initial intent is to get people to party - dance, drink, eat, fornicate.  Folks under the influence would likely be easily suggestible provided it is not something contrary to a characters deep seated morality.<br/><br/>So, Drip might be able to ‘presuade’ Falgrim to do something.