I like the posh spice's hair cute; it is very cute! Her hair cut is called a pixie cut. It is very short though and might not suit an 8 year old. She needs something easy to look after too so I would say keep the length to her shoulders or under so that she can tie it up out of the way. You can have it layered a little too.
I think medium length is a perfect haircut. It's not to long and not to short.
Bob.
Well I don't know what 12 year old girl means but if its a child there is a short messy hairstyle and I think you can get it for teen and adult aswell
pig tails
A Mohawk with pink stripes.
I don't know, but I'm a 14 year old girl with long, wavy brown hair, too!! :)
i think a side fringe would look nicee , and shortish layerss :D
A Bob style haircut or bangs. Easy to style and maintain.
Its hard to know without knowing what you look like, but I don't think it would - sorry
i am a 12 year old boy i would go for the sense of humer,cuteness,and size(my size).
down and curled
You can find haircut photos for 12 year old boys on Google. You can also find haircut photos on the site, Pinterest.