Breaking into a bright smile, Dora pushed her hair away from her face and then made a 'pft' sort of noise. The girl shook her head which only managed to allow the moptop of strange hair to fall right back into her face. "You already lost, Siri. You passed right by me! You are getting old, I think." She loved her cousin, but her humour was learned from not only his friends but also her teasing father and dryly humoured mother. Which meant that already at seven, she poked a little fun at Sirius. The only problem with it was that she couldn't quite keep a straight face during those teasings. So while attempting to mock his age (so very grown-up already at twenty-ish), the smile stayed. It kind of defeated the teasing, but she didn't know that.
When he poked her nose, wide eyes criss-crossed in order to watch it come closer. Full of energy, as was her wont, the wriggly girl moved around and wrapped her arms around the man's neck, kissing his cheek in proper hello. "Are you playing with me today, then? I don't remember Mummy or Daddy saying that you were. It's a surprise!" The surprise was obviously a good thing in her book; Dora never turned down a chance to hang out with the Marauders and Lily.
"Did you know that Miss Alice is here too? I think it's hard for her to type on the fancy word processor." The last part was added quietly, in a conspiratorial voice, since it wasn't particularly polite.