I even do a little thank you gesture to other drivers who simply don’t inconvenience me. Like they could pull out in front of me without causing an accident but I would have to brake, but instead they let me go by.
I ride a motorcycle daily and have started doing a thank you wave to oncoming cars that notice me and don’t pull a left in front of me. This is the manuver that causes most motorcycle fatalities IMO.
I give courteous drivers a nod of the head and a well executed Queen’s Wave; discourteous drivers receive a shake of the head, an exaggerated finger wag and a mouth-mimed “tsk,tsk, tsk”.