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Content: 10. Opening a present immediately
© Provided by Business InsiderIn most Asian countries, most notably China and India, tearing into a gift in front of the gift giver is poor form. It looks greedy. 11. Wearing sweatpants, flip flops, wrinkly clothing, or baseball caps in public
Sure "athleisure" (stylish sportswear worn outside of the gym) is a hot new trend stateside, but in most countries, notably Japan and most of Europe, this sort of sloppy appearance is considered disrespectful. 12. Altering your meal
In foodie cultures like France, Italy, Spain and Japan, asking for ketchup, hot sauce, soy sauce or salt to alter your meal may raise some eyebrows. Before you ask for a condiment, see if there are any on the tables - if not, you should probably refrain. 13. Showing the soles of your feet
In many Arab, Muslim, Hindu, and Buddhist countries, showing the soles of your feet is a sign of disrespect, as they're considered the lowest, and dirtiest part of the body, since they touch the dirty ground.