The exact rotation pattern depends on the vehicle and the tires
themselves. Again, the owner's manual should describe the recommended
pattern for particular car. The standard pattern is to move the front
tires straight to the rear, and move the rear tires to the front, but
cross them over (so that the right rear ends up on the left front). The
reverse pattern (rear to front, front to rear with a crossover) is also
common. The exact pattern isn't really that important as long as you're
consistent each time you rotate the tires. Just make sure every tire
spends some time at each corner of the car.