For me it's partly already taken care of, because part of what we do is dream work. I record all of my dreams and type them up and bring copies to each session. So if I feel like I have "nothing to say" i just hand her a copy of my dreams and we go from there. On occasion I don't have any dreams to work on and I still don't have anythign to say so we just sit in companionable silence for a bit. That took some getting used to. But now when we do it it's just really comforting to sit quietly in that "t space". I have a notebook too that I record thoughts and feelings from previous sessions or whatever I bring that too. sometimes just telling her about a bad day at work or something else non-related like that, she'll find a seed in it and ask a question and off we go. Oh and I take lots of notes during sessions too, so a lot of times I'll be like "what did you mean by such-and-such last week? I forgot to ask."

There's probably as many ways to go about it as there are people who see t's!