I love it. FYI I'm mostly a "Nod" guy but I occasionally wave.
'09 Voodoo Wazoo
'08 Pedal Force RS2
'06 Raleigh Cadent 5.0
'01 Trek 4300 MTB
'93 Norco Nitro MTB Touring
'88 Schwinn Prelude Fixie
1 hour of running = 1 hour of wasted time when you could have been riding. - Alaska Mike
I nod sometimes and usually the nod frequency goes up the fewer people I encounter on a ride. But if I'm riding on a very busy lakefront bike path in Chicago on a nice summer day there might be hundreds of runners and bikers on that same path in a 23 mile span. I'm always so busy concentrating on avoiding dangerous situations like careless pedestrians that walk on to a busy bike path without looking in either direction that waving and nodding are the last of my priorities.