Add all ingredients to the smallest tumbler.
Squeeze some lemon/lime juice if needed.
Use the muddler to crash any ingredients if necessary (check the recipe).
Use the jigger to measure the amount of liquid you need for the recipe.
Add the ice.
Place the empty tumbler on top, and tap to secure them together.
Shake! (Make sure the largest tumbler is at the bottom)
When finished, release the tumblers by taping the side of the tall tumbler. If done correctly, it should release the suction.
Put the strainer on top of the tallest tumbler and pour into a glass. (this way the bits of fruits and ice won't fall into the glass)