Here are some topics you can explore when you don't know what else to say- 9 Tips for Awkward Silences in Therapy | Psychology Today

I can't believe I'm saying it, but I am becoming more comfortable with silence in therapy. What I haven't become comfortable with yet is "spitting out" the nudges I feel in my silence. My therapist said she can always see on my face that I have a thought, and yet I struggle sharing it usually. Those nudges will make for some great discussions probably when I am ready to share more spontaneously.