How does your Tav/Durge spend time in camp? These little moments are the ones I think about the most and wish we could see more of in BG3. If you have any other ideas for questions feel free to drop them in the comments and I'll edit this post to add them!
What is their sleep schedule like?
What does their bed look like? Does that change over time as they find more merchants and towns?
What are they like in the mornings?
What's their favorite meal on the road?
What's their favorite drink on the road?
Do they drink alcohol? Do the others have any funny drunk stories about your OC? If they don't drink, are all companions respectful of that?
How helpful are they with camp duties? Do they do their fair share of chores?
What is their favorite camp chore? What is their least favorite camp chore?
Do they hunt or forage for mealtimes? Are they good at it?
Do they do any of the cooking? If so, what's their specialty? If not, who do they think cooks the best food?
What is their favorite belonging or decoration in their tent?
How do they dress around camp? Do their clothing choices cause any friction among the companions?
Are they modest/shy about bathing in front of others?
Are there any domestic habits or traditions they keep even on the road?
Do they keep their living space clean or messy?
Is there a companion whose cleanliness habits get on your OC's nerves?
How much time do they spend with the other companions vs. alone?
What are they like around the camp fire? Are they the one telling stories or singing songs? Listening attentively? Refilling drinks? etc.
How much do they train for combat (spells or physical)? Do they have a favorite training/sparring partner?
Are they a gossip? Who do they like to talk with the most in camp besides their romantic partner?
What hobbies do they have on the road? How easy is it to find the supplies they need to do that hobby?
Would they arm wrestle Karlach (once she can be touched)? If so, who would win?
Would they stargaze with Gale using his telescope? Can they recognize many constellations?
Would they dance with Wyll? Are they any good?
Would they pray with Shadowheart, or come around after for gossip?
Would they mend or sew new clothing with Astarion? What would they talk about during?
Would they whittle with Halsin? If so, what would they whittle?
Would they accept battle and tactical advice from Lae'zel? If so, would they often agree or butt heads?
Would they joke around with Jaheira? Who has better jokes?
Would they ask Minthara's insights on the other companions? If so, what do they think of her assessments?
Would they accept a piggyback ride from Minsc? If so, would they fully give in to the moment or be afraid he'd drop them?
Do they share any inside jokes with their companion bestie(s)?
What non-leadership skill or area of expertise do all the companions seek them out for advice on?
If the game had no limitations on adopting animals into the camp, what other animals would they adopt along the way?
Do they let the pets sleep with them? If so, how does their partner feel about that?
Which camp location/type is their favorite/least favorite and why?
Do they like to play any games (dice, cards, lanceboard, etc.)? Are they any good?
Do they like to play pranks on the other companions?
Are there any NPCs they do not allow to join the camp? Or any they allow to join but can't stand?
What's their favorite/least favorite thing about life on the road?