formal courtesy

She entered, made a formal courtesy, and was conducted to her seat by Mr. Gaunt.

If a touch of formal courtesy is desired, the forms "I am" or "I remain" may be used before the complimentary closing.

As he passed them he took off his cap, and lowered it with formal courtesy.

This formal courtesy having been duly observed, Peter withdrew at once, and the question of the moment again commanded attention.

She remained half an hour in the workshop, and at her departure omitted the formal courtesy.