I have a close friend who is also a coworker. We always go to each other for professional opinions/debate as we work in the same role. I've been noticing for some time now that she yawns a lot when I'm talking. She doesn't yawn when she talks, only when she is listening to me. I am not monopolizing conversation and we both talk and listen to each other. At first this didn't bother me but now I'm wondering if I'm boring her senseless and I feel very self conscious since it's happening a lot.
Does this mean she finds the conversation boring? She seems more energetic when she is talking. What would you do in my shoes?