Twitter is like staying on a bench in a park and thinking about the blue skies, the trees or about what you’d do next. If you’re walking your dog (with whom you engage in a relationship or reciprocal trust and respect) you might want to let him know you’re thinking about that. Hey, Skip, nice clouds today, huh? Looks like it’s not going to rain. In case you don’t have a dog – and there’s no one else around – you can tweet it.