I've been through quite a few scans, and it really depends on the scan being done. Usually if the tech is in the room with me, I am seeing what they see, and if there is something new or suspicious, they ask questions like, "have you been having trouble with your shoulder?" or "have you fallen recently?"
When the tech is not in the room, like for an MRI, I can't really tell from their expressions, and they don't ask questions.
Some of the old timers here have probably already heard this story, but...
When I had my original biopsies done, I was laying there on that table with my arm strapped down and my chest exposed, and as the surgeon was stitching me up, a man came partway in the door and just stood there staring at me. I couldn't figure out what he was doing there, but I remember thinking that he had the saddest eyes I had ever seen. It was very disconcerting, and as I turned my head away from him, I heard the nurse saying to the surgeon that the pathologist wanted to have a word with him.
That's how I found out I had cancer...not from hearing the words, but from those sad eyes staring into mine. I immediately knew what the results were. No one had to say a word.
Anyway, I don't know how to fit all that into a poll!
Love and hugs to all