To use an air fryer for beginners, follow these simple steps: 1. Preheat the air fryer to the recommended temperature. 2. Prepare the food by seasoning or marinating it as desired. 3. Place the food in the air fryer basket, making sure it is in a single layer. 4. Set the cooking time and temperature according to the recipe or the food's requirements. 5. Press the start button and let the air fryer do its magic. Enjoy your delicious and crispy food without the excess oil!