Etiquette or Rei
“…rei is an integral part of the conscious-ness of all traditional Japanese culture. It springs from the very basic concept that if the outer form is correct and proper, a similarly condign impulse will follow. If the shadow is right, the pattern creating it will be right as well. “
“…etiquette is as much a part of your training as learning the techniques. Awareness is the most important thing. Be conscious, not only in your training on the mat, but also in the way you walk into the dojo, the way in which you align your shoes, and the way in which you speak: all these are training in Budo as well."
Ryugan Savoca – Brooklyn Aikikai
The Newcastle Aikido etiquette guide.