Influence
Influence allows you to change an NPCs disposition towards you. This is done through Roleplay of verbal interaction and description of body language. However, actions always speak louder than words, so only Minor Social Events can be created with the Influence action.
When you choose to influence an NPC, first decide which Disposition you would like to increase. You then roleplay with the NPC, with the flavor of your roleplay corresponding to the disposition you are attempting to affect. For example, you could chum up to a patron at the bar to increase their Fondness. Alternatively, you could pretend to be a harmless blind beggar when approached by the town guards, instilling Doubt and belief that you are not a threat.
When the roleplay comes to a natural conclusion, you make a Social Skill Check against the NPC. A successful check earns you a Minor Social Event to potentially increase the chosen disposition. The Skill you used to make the check, along with your roleplay, determines which Disposition is affected.
Lending Aid to an Influence Check
It is possible for you to aid an ally that is Influencing an NPC. For example, you can make small talk or give encouraging smiles (assisting with Charm). Conversely, you look at the NPC menacingly while punching your first into an open palm (assisting with Coercion). When you aid in this way, you grant your ally a bonus to their check equal to 1/2 your Rank in the appropriate skill. Of course, your method of aid must be conducive to the goal of your ally, or you will instead impose a penalty to your ally (i.e. looking menacingly over your friend's shoulder as he attempts to chum up a stranger is not going to help him out much).
Representing an Organization
Sometimes Influence can change an NPC's disposition towards a group or organization that you represent (instead of just you). If you are identified as a representative of a specific organization, such as a member of the town guard or leader of the merchant's guild, social events you generate through Influence can alter the NPC's Prejudice towards the group you represent. These kinds of changes are more rare and based on the way you represent the group during your interaction and are ultimately awarded at the GM's discretion.