Three ways to show that everything is fine or to express success are: the V for victory, the OK sign, and the raised thumb. The raised thumb can also mean “higher,” “to the right,” or “to the left.” It can also be the signal of the hitchhiker.
The OK Sign
In an aquatic environment or in a very noisy context, when it is impossible to make oneself heard, or when one wants to be discreet, the OK sign is used.
A thumb pointing downwards expresses misfortune. The thumb can also be used to exert pressure.
Here is the symbol ...
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