Situation: We got an alien spaceship in orbit around Earth. They have no malicious intent towards Earth and its inhabitants, and we have no reason to blow them out of the sky. Peaceful contact... but how do we establish it?
Are there any real-life plans in case we have friendly aliens in orbit around the planet? Do we send them a variety of signals and hope one sticks? If so, what do we send? The contents of the Voyager Golden Record? Messages and images of peace and friendship? Or something more recent? Do we even have something like ready to go? Or do we send a spaceship up there and see if we can arrange a physical meeting with the aliens (though that will require a space walk for us to their ship or from theirs to the ISS)?
And what would be the most logical thing for the aliens to do? Send their own information through some kind of signal? And from there create some kind of translation chart and go from there? Might they send an information package down and hope that this isn't seen as an act of aggression? Or will they just land and hope for the best?