Someone else will tell him

"I'm coloring over the letters on Grampie Fisher's present."

"How will he know it's for him?"

"He will see it's his favorite color."

"Grampie's favorite color isn't orange."

This earned a doubtful look. "Well, okay, it's not his favorite but he likes it."

"He's going to know it's for him because you colored it orange? How do you figure that?"

"His wife will tell him."

"Honey, Grampie Fisher doesn't have a wife."

A grimace. "Oh. Well, someone else will tell him then."