Starman - Alan Dean Foster

He came to observe life on earth - that's what happens when a peace-loving alien takes the friendly invitations we send into space seriously.

But the U.S. Air Force shot down the starman's ship, and now he has to clone the body of a human being just to stay alive.

Armed with a smattering of earthly lore (how to say hello in Chinese, the Stones "Satisfaction") collected from Voyager II, as well as his own mind-boggling extraterrestrial powers, he will set off with a beautiful young earth woman on what will become the greatest adventure of their lives - a dangerous flight across America into the unexplored territory of interplanetary love ...