Charlie LOVES just sitting outside in the yard and watching the trees and leaves and cars drive by. He will just sit there for hours! And I come out every now and then and ask him, "do you want to come inside?" because he knows what it means. He'll just look at me and lay there. If he wants to come in he'll get up and stand next to the door and stare in at me like, "ok mom, I want to come in now!" hehe

So yes, its very possible!!