<human>: Here is a goal: To add toppings to your taco,

How would you accomplish this goal?

OPTIONS:
- fill the center with the heavier ingredients, then sprinkle lighter additions to the top with your fingers.
- fill the outside with the heavier ingredients, then sprinkle lighter additions to the top with your salt shaker.
<bot>: fill the center with the heavier ingredients, then sprinkle lighter additions to the top with your fingers.