She noticed these things almost unconsciously.

They were things which would naturally flow from the situation.

She was used to Drouet's appearance.
"Suppose we have a little game of euchre ?" suggested Hurstwood, after a light round of conversation.

He was rather dexterous in avoiding everything that would suggest that he knew anything of Carrie's past.

He kept away from personalities altogether, and confined himself to those things which did not concern individuals at all.