Advice on DB-ing when sep spouse lives at home

[Done in VA]

I am in the same boat as you asking the same question awhile back. I have decided to model the relationship that I would like to have, but also mirroring my H's moods. If he is in a good mood & has partaken in or initiated conversation earlier in the evening, I might tell him a funny story about something the kids did that day, or ask him if he heard about XYZ on the news (something interesting). Lighthearted conversation.

When H comes in the door, I very cheerfully greet him. No physical touch, but Hey! How are you? then I have family dinner ready for him once he changes. I can, at that time, ask him about his day.