Places I have noticed it:
Sarah and Maurice in the chapel: Sarah piously having her hands folded
in her lap; Maurice with his arm around her trying to stroke her
breast
Henry and Maurice, towards the end: Maurice offers to take matters
"Out of his hands." (pg. 113)
Sarah's hands when she is praying to God after the robots attack
drawing blood.
Richard Smythes "extraordinary" hands that he tries to get Sarah to
look at while petting his cat.
I don't know, I'll probably have to re-read it to get the full gist
but... kind of interesting