What will you do when .... you see an alien?

Will you ...?

1. Run to it and shake its  hands? or foot ? or tail? 
2. run away screaming, "aliennnnnnn!"
3. give it your first hello world app? o.o
4. stand there frozen as it comes closer and closer to you?
5. sing "Let it go" song, hoping it will just go?
6. do the logical thing and call 911?
7. run and hide, but follow it to see where it is going?
8. shoot first and ask later? 
9. ask it to take you to its home planet?
10. bow down to it and say, " Hail hydra!"