" I hear from the chain master," said Samos, "that you have learned the tile dance creditably." The tiny cups and glasses shook on the tray. "I am pleased," she said, "if Krobus should think so." The tile dance is commonly performed on red tiles, usually beneath the slave ring of the master's couch. The girl performs the dance on her back, her stomach and sides.
Usually her neck is chained to the slave ring. The dance signifies the restlessness, the misery, of a love starved slave girl. It is a premise of the dance that the girl moves and twists, and squirms, in her need, as if she is completely alone, as if her need is known only to herself; then, supposedly, the master surprises her, and she attempts to suppress the helplessness and torment of her needs; then, failing this, surrendering her pride in its final shred, she writhes openly, piteously, before him, begging him to deign to touch her. Needless to say, the entire dance is observed by the master, and this, in fact, of course, is known to both the dancer and her audience, the master.
The tile dance, for simple psychological and behavioral reasons, having to do with the submission context and the motions of the body, can piteously arouse even a captured, cold free woman; in the case of a slave, of course, it can make her scream and sob with need.
Explorers of Gor, Page 13

Notes

        By the very nature of this dance being usually at the foot of the Master's couch it is not often done in public, but rather in the privacy of His chambers. However, there is a slave ring on the dais and this dance can be performed there, at the foot of the dais.

        For that very reason this is a dance that must be ordered of a girl. For it to be performed outside the dance pit in Tyros any dance must be ordered.

        This is one of those dances which start out fevered, grow in intensity and hopefully will draw the Master into the dance. ~grins and winks~