I was heading up I-25 in heavy weekend traffic, watching the idiots in front of me.
A small, green sedan pulled up along side of me to my left. I didn't think anything about it, especially since I was busy watching the traffic. Then, out of the corner of my eye, I noticed movement from the car that wasn't common. I looked over and a cute blond was holding up a sign that said "Hi". It was a pre-printed sign, about a foot across, white with black lettering. I chuckled and waved at her. She then held her arm out the window, pumping it up and down with a closed fist, signaling that she wanted me to toot my horn, so I obliged.
The Dumb Ass in the lane to my right almost ran off the road.
The blond and her male driver then sped up, waving as they drove away.
I laughed at this interaction all the way to my delivery location. It had been years since somebody had done something like that. I appreciated their friendliness, especially in the middle of traffic.