I don't have a set start with T, although we usually start with 5-10 minutes of silence. Which is a lot from a 50-minute session, but that's really my process. If T jumps in and asks a question or says, "Last week we were discussing X..." then I usually feel really pushed and shut down and it takes even longer to talk!

As the years have gone on I've gotten better at starting. Some of my favorites:
"Last week we were talking about X. I think..."
"I feel nothing today. I'm numb."
"I feel tense today."
"I feel stressed out."
"I'm afraid to start. Can you?"
"Can we talk about stupid stuff for a while and then I'll jump in?"