I'm just wondering...
Suppose extraterrestrials made first contact with us--or the extraterrestrials among us revealed ourselves (only we know who we are!).
What effect would it have on you when you first found out (eg. the news, or a friend of yours revealed himself)? Would alien first contact affect your life in a major way? Would you forever remember what you were doing when it happened? What would you do?
What would be the effect on Earth's civilisation, way of life, religion, etc? Would they be friendly or hostile?
Let's have fun and speculate!