As with most forum games, this one is very simple
Person 1 will post something like "never have I ever jumped into a pool naked".
Person 2 then states whether or not they have done said activity (with a short explanation if they so wish.)
They then suggest another "Never have I ever"... (e.g. "Never have I ever been to Europe")
Your NHIE can be anything, though preferably it is something you actually haven't done
Be appropriate, and have fun!
I'll begin:
Never have I ever traveled to South America