The more holy someone is, the more cordial they should be with others.
Although you may be pained because their conversation is not what you would wish, never keep aloof if you want to help them and win their love.
Try to think rightly about God. He does not look at such trifling matters as you suppose; do not alarm your soul or lose courage for you might lose greatly. Keep a pure intention and a firm resolve not to offend God, as I said, but do not trammel your soul for instead of advancing in sanctity you would contract a number of imperfections and would not help others as you might have done.