How to pronounce “comportment” in English

We don't open our mouth, because we have a precept against that.We have a rule of comportment where when we chew, we don't talk.So I was rather annoyed, but he kept on insisting.

She was walking through Covent Garden.She had to get home, had to walk up the staircase to her rooms, where the foot of the man of good comportmenthad not shot out and tripped her heel, where he had not smiled and said, 'Yes?