Meaning
A hand with the thumb and index finger touching to form a circle and the other three fingers raised. It usually means “OK,” “perfect” or “got it,” and can also praise something as just right, like a chef’s kiss.
It is handy for quick confirmations: “Booked the table for seven 👌” Keep in mind that the real-world gesture is considered rude in some countries and has been misused by certain groups online, so with international or unfamiliar audiences a thumbs up or a simple “OK” is less likely to be misunderstood. A lone 👌 can also feel a bit curt.