meanings in different parts of the world due to cultural differences. While you might be thinking thumbs up shows approval, real life is not like Facebook. In parts of the Arab world, the gesture is considered highly offensive.
11 Common Gestures People Use in Arab Countries to the most common gestures used by Arabs, so you won't end up getting (too) lost.
Success leaves clues, or in some instances, the lack of success leaves clues! Gestures are one of the first things to come to mind that can.
A thumb signal, usually described as a thumbs-up or thumbs-down, is a common hand gesture In modern popular culture, it is assumed that "thumbs down" was the signal that a defeated gladiator should be condemned to death; "thumbs up".
Iraqis are giving passing Americans the "thumbs up" sign, which the after the first Gulf War “Middle Easterners of the Arabian Peninsula.