So J waves at every truck he passes, and most generally the other driver waves back (this is when he's driving his truck). Now when I drive his truck, I keep up the wave-thing because I know that as a person driving a truck, I need to wave. However, people don't wave back! Hmph! Now when J started driving my car, he would wave and people wouldn't wave back-HA!. To which I said, well do you wave to cars? Well no, well then they aren't going to wave back to you--LOL. However, lately people have started waving at him when he's driving my car--I don't get it! Maybe I need to start wearing a baseball cap and go all farmer-incognito. And yes, its a minute detail of life...but its just odd...well at least to me.
If anyone can solve this mystery, please let me know :-)