What you need
A board of 72 squares, an ordinary six-sided die, and a playing piece. There is no special Leela die. The piece is traditionally a personal object: a ring, a key, a hair clip. You also need a formulated question and a place where nobody will interrupt you.
Entering the game: the rule of six
Your piece starts off the board, on square 68, Cosmic Consciousness. To enter you must roll a six. Until a six comes up you stay where you are. This can take many rolls, and it is not a malfunction: the tradition holds that the game admits you once your question is precisely formulated.
Where movement begins
On entering, the piece moves to square 6, Delusion. From there you roll and advance by the number shown. A roll of six earns an additional roll.
Arrows and snakes
Some squares are linked by arrows and snakes. An arrow lifts your piece to a higher-numbered square, a snake brings it down to a lower one. Neither is a reward or a punishment; both are part of the route. An arrow points to a support, a snake to a mechanism that returns you backwards.
How to read the square you land on
You stop on every square, read its meaning, and connect it to your own question. There is no single correct interpretation: the description sets a frame and you supply the content. Write your answer down rather than holding it in your head.
How long a game takes
Ninety minutes to three hours, depending on how closely you examine each square. A game does not have to finish in one sitting: breaking off and returning a day or a week later is normal, and often better than forcing through while tired.
How to end the game
The game ends on square 68, where your piece began. To finish meaningfully, reread the answers you wrote and put what you understood into a single sentence. Without that step the game stays a set of separate observations.