Sue,
Good luck with your ATG treatment.
Putting specific expectations on yourself isn't necessary. Since you don't know in advance how you'll be feeling on any given day, I suggest that you bring your reading, bring your knitting, and tell friends that you'll let them know when it's a good time to visit.
You'll find some other suggestions in the
How do you spend your time when you're stuck at home or in the hospital? thread.