Yeah, they could have some activities, idk find Judy in her desk doing BD stuff, or see her sleeping, or not find her in her apt. But nope, she's glued next to her window forever.
Judy:
At her computer doing BD stuff
Tinkering with the stuff in the living room
Panam:
Tinkering with her truck
Running nomad errands
Singing songs at night around a campfire
River:
Playing with the kids
On a computer doing some investigative work
Kerry:
Making music
Using all the crap that's in his house
Cleaning up his house or conversely
Hiring a maid
Then you can also have generic stuff that they all do:
Making food (in Kerry's case, ordering takeout)
Eating and drinking. Coffee in the morning, alcohol at night
Sleeping
Showering
V should be able to ask them out. "Hey wanna go for a drive? Wanna grab a bite to eat? Let's go to a bar!" They can talk about the latest quest stuff V has done, anything they are working on, spilling personal feelings, or whatever else. End the evening with a kiss or a hug or whatever platonic stuff, fade to black, and boom. Hangout done, you get a followup text about how much they enjoyed hanging out with you and that you should do it again sometime. The mind fills in everything else that happened ...