The 10 Strangest Unwritten Rules of Different Cultures

3. Middle East – The Left Hand Is “Unclean”

In many Middle Eastern countries, the left hand is traditionally seen as unclean and should not be used for eating, shaking hands, or handing items to others. The right hand is reserved for these actions, as the left is associated with personal hygiene. If you’re left-handed, you may need to make a conscious effort to adapt to social settings. Why it matters: Using the left hand for social interactions can be seen as disrespectful or even offensive.