Hi and welcome to YT

! Your new baby is adorable!! For chewing, all I know to do is to continuously redirect them to one of their toys/chews. Do you have a Kong? If not, I'd try one as it may be something that can entice him away from the wall since it'll contain food/treats.
Most likely, no, the ears will probably not stand on their own. Rather - see this thread:
http://www.yorkietalk.com/forums/pup...-stand-up.html