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Sit from WikiPedia:

Sitting is a rest position supported by the buttocks or thighs where the torso is more or less upright. There are several ways for humans to sit.

The most common way of sitting on the floor involves bending the knees. One can also sit with the legs unbent, using something solid as support for the back or leaning on one's arms.

Sitting with bent legs can be done along two major lines; one with the legs mostly parallel and one where they cross each other. The parallel position is reminiscent of, and is sometimes used for, kneeling. The latter is a common pose for meditating.

• Seiza (???) "correct sitting" is a Japanese word which describes the traditional formal way of sitting in that country. Sitting in seiza is kneeling on one's own lower legs, with the feet under the buttocks, toes pointed backwards. To sit in seiza for any length of time requires careful positioning of the heels under the sit bones of the hip, to minimize circulation loss. A related position is kiza (???), which differs in the tops of the feet being raised off the ground.

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