conversing with a foreigner who may be learning our language, it is
excusable to help him in some delicate way.

Never give advice unasked.

Do not manifest impatience.

Do not interrupt another when speaking.

Do not find fault, though you may gently criticise.

Do not appear to notice inaccuracies of speech in others.

Do not always commence a conversation by allusion to the weather.

Do not, when narrating an incident, continually say, "you see," "you
know."

Do not allow yourself to lose temper or speak excitedly.

Do not introduce professional or other topics that the company
generally cannot take an interest in.

Do not talk very loud. A firm, clear, distinct, yet mild, gentle, and
musical voice has great power.

Do not be absent-minded, requiring the speaker to repeat what has been
said that you may understand.

Do not try to force yourself into the confidence of others.