In a very close one-on-one situation.

Direct, one-to-one.

Facing one another. / Directly, one-to-one.

(people) To do with heads. / (animals) To do with heads. / The end of a table. / (countable) The principal operative part of a machine or tool.

Of, relating to, or intended for the head.

(transitive) To be in command of. (See also head up.) / (transitive) To come at the beginning or front of; to commence. / (transitive) To strike with the head; as in soccer, to head the ball

Foremost in rank or importance. / Placed at the top or the front. / Coming from in front.

present participle of head

The title or topic of a document, article, chapter, or of a section thereof.

Used to create nouns indicating a state; -hood.