The head tone is the voice of ordinary conversation and should form the basis of the public-speaking style.
Yet the head tone must not be entirely free from palatal resonance.
It is the continued use of the head tone that is to be avoided.
This is the correct attack for the head tone, or a tone taken in the upper register.
Female singers should always begin the head tone on this degree of the staff and not on F and F♯, as is sometimes recommended.
He would expect you to employ for that purpose simply a head tone, not a chest tone nor an abdominal tone.