Chris is obviously uncomfortable at the party until he finds another African American man in attendance. When he greets him, he is taken aback by the unconventional greeting he receives.

River Song reunites with old friends and recieves a special Christmas gift from The Doctor.

Nathan fails to introduce himself, which is considered rude. Katsumoto shows Nathan how to greet others in Japan.

A young orphaned boy is taught several social graces so that he knows how to act in a formal setting in the company of new acquaintences. Despite his learning, he does not act appropriately during the gathering.

Parker and Hachi have become good friends, and Ms. Parker decides to accept Hachi into their family.