Can you cover it with a sheet?? Also try distracting him with toys/treats/playing. And from what I know of separation anxiety, it would be *very* obvious--frantic barking/panting/jittery and basically going nuts. You would KNOW that he was VERY unhappy. I remember how overwhelming the first few weeks with a puppy can be...there's so much to learn..."is this behaviour normal? Should I be worried?? Is this right??" Hang in there because before you know it, both you and him will be comfortable. I'm not saying that I still don't have thoughts like that 6 months later, but it gets easier & easier.