The Meerian gesture of farewell was performed between two Meerians—or a Meerian and another person—when an individual was leaving or saying good-bye. The gesture consisted of the individuals holding out their hands, with their palms upward. Then, the hands would be flipped over, with the palms facing down.
The only known reference to this action was on the planet of Bandomeer between the Meerians VeerTa and SonTag and Qui-Gon Jinn. Although Obi-Wan was present, he purposely didn't acknowledge the parting, since no one seemed to care what he did, or so was Obi-Wan Kenobi's impression.