(If Rainbow had known that in advance, since she was just IN Goldenrod she might not have tried to catch up with her friends so quickly! Still, despite her semi-bored expression her eyes brighten at the mention of Naruto's birthday.)

Haha, seriously? Your birthday's on the 10th?! That's awesome~! I'm totally there, and I'll make sure to get you something cool by then.

(A friend of hers who also left some time ago, Pinkie Pie, would've loved the idea of a party...)