I have both a Harley and a TJ and I am just a waving SOB, the High wave to the Jeep and the low wave to the HOGs. Although I have been riding Harlyes since 1970 I have been a Jeep CJ/TJ owner since the early 80s and have never been without either one since.
The wave is a funny thing either you have or you don't sorta like teeth.
HarryS
This spring I got a "right on" fist from a biker, the first month my CJ-5 had plates. I felt pretty good about it, and guessed that the cage back in his garage was a Jeep.