Hello, i was hoping some one can help me, i picked up a puppy yellow lab for the GF and her family. the pup (Missy) is now almost 4 months old. around us she is great,affectionate,playful and always happy, but when she leaves the house she is very skiddish around other people, she will not let anyone pet her, she backs away. she will not enter some one elses house, and backs away from other dogs, with the other dogs she will eventually come around,but then walk away. does anyone have any suggestions to help get missy over her shyness? thanks.