, what a fierce cousin you are!
Chihiro is just 5 years old, and this will be the first time you meet her. Don't you think it's a little bit ... cruel to treat her like that (especially the first 3 sentences).
Since her first language is Japanese, let me give you some more "friendly" sentences. LOL!
"That's cute!/You are cute!" -- Kawaii desu ne (literally= is cute)
"Are you hungry?" -- Onaka ga sukimasu ka?
"Are you tired?" -- Tsukaremasu ka?
"What do you want?" -- Nani ga hoshii?
Also, from part of your sentences:
"Please wait." -- Chotto Matte.
"Where do you want to go now?" -- Ima, doko e ikitai?
Pronounce it as if you are pronouncing Tagalog, if you pronounce it in english way, then she will never understand you.
For instance -- Matte (wait) is actually formed by 2 sounds Mat-te, if you pronounce it using english way, then it becomes 1 sound -- Matte.
All the best. Tell us when she is here.
, hi! We are so close to each other (I'm from Malaysia), nice to see you joining us. Enjoy yourself here.