Quote from : Harry Potter and the Deathly Hallows: Part 1 Movie

[Harry and Hermione stands at Lily's and James' grave in Godric's Hollow. Hermione sees the tears that streams down his face. She magically leaves a wreath of Christmas roses by it with her wand. Harry stares at them with an emotional face]
Harry Potter: Merry Christmas, Hermione.
Hermione Granger: Merry Christmas, Harry.
[Hermione leans her head on his shoulder]