How to Encourage Naturally Sulky People to Speak Up

We have a few minutes left for questions, and there are some questions coming into the chat now. lesse asks, where is the right boundary for encouraging naturally sulky people to speak up? Denis ask, can you say something about the relationship between silence and belongingnd, i wonder if those all have to do with psychological safety in a way)? And Gale asks about how emphathy trossed and vulnerability in the creation of work place space are important.