With the arabs their face is held at a verticle in the western events... I just start like I would an english horse... I ride with contact and teach the horse to be round/collected.
Once that is accomplished the horse is usually "soft" enough to just hold themselves there without touching the face.
It is, as others said, not about the face but about the body, then the face just automatically falls into place.
Every great dream begins with a dreamer. Always remember, you have within you the strength, the patience, and the passion to reach for the stars to change the world. ~Harriet Tubman