So I'm on a DR650, ATGATT, and I wave to every rider I see, I'm just a happy guy. However, this has happened on more than one occasion and was wondering what it meant, if anything? When I wave, they remove their hand from the handlebar and place it palm down on their knee. I'm not bashing anyone, just asking if there is a meaning. The riders that have done this are the H-D, no gear guys, although one rider today had mirrored sunglasses, if that is any consolation. Is it a suble way to say I see you but I don't formally acknowledge you? Wave or no wave, don't care, just wondering if there is a meaning. Educate me, I'm a noob.