Final answer:
To properly dry hands after washing, use a clean towel or hot air blower, dispose of the towel correctly, and use it to turn off the faucet and open doors.
Step-by-step explanation:
An acceptable way to dry hands after handwashing is to use a clean towel or a hot air blower. Once you've thoroughly rinsed your hands, ensuring that water flows from the wrist to the fingertips, you should dry your hands completely with a clean towel. If a towel is used, it is important to properly dispose of it after use.
Furthermore, you can utilize the used towel to turn off the faucet and even open the bathroom door to avoid recontaminating your hands. Although not mentioned directly, it's also worth noting that paper towels can be a hygienic option, especially in public restrooms, as they are single-use and can serve the same purpose as cloth towels for turning off faucets and opening doors.