Final answer:
Hand drying at a handwash sink should be done with an air dryer or single-use paper towels for sanitary reasons, not with a handshake. Cloth towels are acceptable if they are clean and individually used.
Step-by-step explanation:
The acceptable means of hand drying at a handwash sink include the use of air dryers, single-use paper towels, and potentially the use of cloth towels, depending on the setting and regulations. However, the handshake method is not a sanitary method for drying hands and is not recognized as a proper technique for hand drying. When drying hands, it's important to use a method that does not re-contaminate the hands after washing. Air dryers and single-use paper towels are typically recommended in public restrooms due to their sanitary nature and low risk of cross-contamination. If using cloth towels, they should be clean and used by only one individual before being laundered.