our best 1st chance at 1st contact would be a radio transmission but not even 1 percent can tell you how a radio works, thus we have very few amount of people that could maybe even know how to send signals, and these people are probably too busy to do just that because they are working at a job that may have nothing to do with it
What's your call sign Marty? My pops has been into HAM since the 50's.