Just had a word with breeder. He said pup is bit shy and will get along when he comes to know each other. He also said that the pup might just sit in a corner for first 2-3 days and later he will start exploring. He also said that the pup would open up when he feels that it is his home....
I know yorkies mark their territories and I hope he will fill our lives with 'Happy'ness..!!!