Thumb and forefinger form an O. Symbol for "Okay!" Sign of approval, agreement or that everything is okay. Careful, in some countries it is considered offensive and insulting ("you a**hole").
The OK hand emoji was introduced in 2010 and released as part of the Unicode 11.0 standard. This emoji can be found under the people and body
category. Because the OK hand emoji has been around for quite some time, it should display correctly in the majority of operating systems.