What to do if you make 1st contact with an alien race

There are certain things you need to remember when involved in changing the course of human history forever.

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It does remind me slightly of the lyrics:

Overwhelmed as one would be
Placed in my position
Such a heavy burden now to be the one
Born to bear and bring to all
The details of our ending
To write it down for all the world to see.
But I forgot my pen