When there's a scene with a group of characters together on a mission or journey, and the most dynamic 2 or 3 of them are in a conversation or working on something, what do you do with the other people? It's not realistic for them to just stand around doing nothing, so there probably needs to be some mention of them, right? You can give them a task, like "..and Josh and Megan headed off to test the equipment" to get them out of the way and be doing something plot-relevant. What else? I realize this is super vague. That's because I want to focus on strategies for this type of thing in general, not a solution for just one specific situation.