The tanto, a traditional Japanese short sword, was typically worn by samurai or warriors in a similar manner to other Japanese swords. The most common method of carrying a tanto was by suspending it from the obi, a wide belt worn around the waist.

The tanto would be placed in a sheath, known as a saya, which was designed to securely hold the blade. The saya would have a cord or loop attached to it, allowing the warrior to thread it through the obi. The tanto would then be positioned horizontally, with the handle (tsuka) facing to the left side.

The positioning of the tanto on the obi allowed for easy access to the sword when needed, whether for self-defense, combat, or ceremonial purposes. It also kept the weapon secure and prevented it from moving or falling out during movement.

The specific location for wearing the tanto on the obi could vary depending on personal preference, regional customs, or the situation. However, a common placement was on the left side of the body, traditionally opposite to the primary sword, such as a katana, which would be worn on the right side.

It's worth noting that there could be variations in the way the tanto was worn based on the historical period, the samurai's social status, or specific schools of swordsmanship. The methods of carrying and wearing the tanto might have slight differences, but the general practice involved suspending it from the obi.

In summary, the tanto was typically worn by threading its saya through the obi, positioning it horizontally on the left side of the body, with the handle facing to the left. This method allowed for convenient access to the sword while ensuring it was securely carried.