I actually did when I was child, waved at them and counted the planes by scribbling down tally marks. My siblings just ignored them I think. I always was a head in the sky kind of person, still are. Hence I’m member of the cloud appreciation society.
@Rickichickie While once on a camping holiday with friends in the Yorkshire Dales a few years ago, two RAF Transport planes flew quite low over us. We all waved - and the pilot of the second 'plane acknowledged by waggling the wings!