What kind of behavior can I expect of my puppy from 6-14 months?

The Second Fear Imprint Period is similar to the one that occurred during the socialization period, but, it is much less defined. It occurs as dogs enter adolescence and seems more common in males. It is often referred to as adolescent shyness. Your dog may suddenly become reluctant to approach something new or suddenly become afraid of something familiar. This behavior can be very frustrating to the owner and difficult to understand because its onset is so sudden and, seemingly, unprovoked. If you notice this behavior, it is important to avoid the two extremes in response: Don't force him to do or approach something frightening to him and don't coddle or baby him. To get through situations that make your dog fearful, be patient, kind, and understanding. Do not coddle or reassure him in any way that will encourage his fearful behavior. Do not correct him either. Simply make light of it. This phase will pass.