Preheat air fryer to 400F.
Open the can of chickpeas and reserve some of the aquafaba off to the side (at least ½ Tbsp). Once some aquafaba has been reserved, pour the chickpeas into a colander and rinse them off in the sink. Pour them onto a kitchen towel and place another towel on top. Gently roll them in between the towels to dry them off as much as you can. Set them off to the side until the air fryer is preheated. Chickpeas have a very thin transparent skin on them. You might find that the skins have naturally come off of some of the chickpeas during the process of drying them between the towels. This is fine, just discard the skins that have naturally come off (no need to remove the skin of each and every chickpea). Add the chickpeas to the air fryer, making sure they are all in one layer and not stacking on top of one another. Air fry at 400 for 5 minutes. Give them a stir, and then return to the air fryer for another 5 minutes. Stir once more, and return for 5-7 more minutes or until they are cooked to your liking.
In a small bowl, combine your garlic salt, smoked paprika, and onion powder. (Combining them like this before adding them to the chickpeas is the best way to evenly distribute all of the flavors!)
Remove chickpeas from the air fryer and pour into a medium bowl. Add ½ tablespoon of aquafaba and give them a stir so they are evenly coated. Add your seasoning mixture and stir again so that the chickpeas are all seasoned.
Serve as desired and enjoy! (Note that the chickpeas are best served right away before they lose their crispiness. If you have leftovers and need to crisp them up again, just air fry them once more at 400F for a minute or two).