Runing an Influence Encounter
Source GM Core pg. 211
When running an influence encounter, let the PCs be creative and use a diverse set of skills whenever possible. Be open to improvisation, and change the structure of the encounter if something interesting presents itself. The PCs set the pace and choose with whom they interact. It's up to you to make sure every NPC is distinct, react to the PCs' interactions with the NPCs, and lend overall structure to the encounter by making sure it feels like a living, breathing event rather than just a series of skill checks.
Think about how the number of rounds of a social encounter relates to the overall event. For instance, if you have a four-course brunch that takes 6 rounds, you could have 1 round for introductions before the food arrives, 1 round for each of the courses, and 1 last round of conversations after the final course. NPCs might filter in and out or become unavailable for conversations as they are occupied by various tasks, or become particularly eager to engage a PC. That sort of change helps make the NPC feel a bit more real and helps break up any repetition in your encounter.
Think about how the number of rounds of a social encounter relates to the overall event. For instance, if you have a four-course brunch that takes 6 rounds, you could have 1 round for introductions before the food arrives, 1 round for each of the courses, and 1 last round of conversations after the final course. NPCs might filter in and out or become unavailable for conversations as they are occupied by various tasks, or become particularly eager to engage a PC. That sort of change helps make the NPC feel a bit more real and helps break up any repetition in your encounter.