Final answer:
To clean spilled chips from a keyboard, Brian should use canned air, which effectively removes debris from sensitive electronic devices without causing damage.
Step-by-step explanation:
Brian should use canned air to clean up the chips from his keyboard. Canned air, also known as compressed air, is the best option for removing debris from sensitive electronic devices like computer keyboards. It blows away crumbs and dirt without damaging the electronics. A hairdryer could potentially damage the keyboard with heat, a toothbrush might not reach all the crevices and could be too harsh, while a wet cloth could cause moisture damage to the electronic components.