Judo Etiquette
a. Ritsurei ("ree'-tsoo-ray", standing bow). The judoka stands with arms straight down and hands on the outside of the thighs. Heels are together with big toes about 3 inches apart As the judoka bends forward at the waist, the hands move down and forward to the front of the thigh above the knee. As the judoka returns back to upright posture, the hands move up and backward back to the outside and side of the thighs. Throughout the bow, the head keeps in line with the back, but the eyes always look forward.
b. Zarei ("zah-ray", kneeling bow). The judoka stands with arms down. The judoka slowly drops to the left knee, then to the right knee, then crosses the feet and sits back on the heels. For males, knees should be two fists apart. For females, knees should be together. Hands rest on the front of the thighs. The left hand should make a circular motion out in front of the judoka and rest on the mat in front. The right hand follows similarly. As the hands go down, the judoka bows at the waist about 60°, keeping the head in line with the back, but with eyes looking forward. The judoka then rises in reverse order.
Again, your assistance in encouraging your child to perform proper standing bows when entering and exiting the dojo and the mat will be greatly appreciated.
a. Seiza ("say'-zah", formal kneeling). The judoka kneels and sits on her heels. The toes should be "live"; that is, the toes are curled so that the bottom of the toes rather than the top are touching the mat.
b. Anza ("an-zah", informal sitting). The judoka sits cross-legged, with feet tucked under thighs.
c. Kyoshi ("kai-oh'-shee", formal high kneeling). This is not a typical form of sitting, but does occur in certain circumstances. This is how an archer would kneel with one knee down and the other knee up.
Under no circumstances should the judoka sit so that the sensei can see the bottom of the feet. This is considered very disrespectful in judo. The judoka should be silent whenever the sensei is speaking or presenting. Raising hands and asking questions pertinent to the sensei’s lesson is always encouraged.
a. Natural posture is shizen hontai ("shee-zen hon-tai'") also referred to as shizentai ("shee-zen-tai"), migi ("mee-gee", right) shizentai, or hidari ("hee-dar'-ee", left) shizentai. In shizentai, the feet are placed about shoulder width apart, the knees are bent slightly with the body straight and weight evenly distributed. In migi-shizentai the stance is almost the same as in shizentai except the right foot is placed slightly forward, while in hidari-shizentai the left foot is placed slightly forward.
b. Jigo hontai ("jee-goh hon-tai'")or jigotai (defensive posture) is used when trying to make it difficult for one to be thrown. In Jigotai, the legs are spread wide and the body weight is placed low by bending the knees.
This information was collected from http://www.amerikanjudo.org/phandbook.html