Where I'm from, that's not something you announce, you just do it and don't really say. Using your left hand when interacting with othersAvoid in India, Nepal, parts of the Middle East, Ghana and NigeriaAliyah Alli explains how she was met with anger after using her left hand to hand over her passport in Nigeria. 'In Nigeria it is seen as highly disrespectful because your left hand is for specific things.' 'Smiling is like saying your life is great, which is considered rude. It's time efficient for sure but this is considered rude in my country.

Source: Daily Mail September 13, 2020 07:30 UTC