A meat thermometer is a godsend. Check up on the chicken before you serve it by inserting the thermometer in the meat's thickest part. It should be 165°F. Also, don't overcrowd the basket. As the name states, air fries the food; if the air can't circulate, the food won't cook as it should. The chicken will be steamed and could dry out. Last, don't forget to flip it!