I'm not sure she really has the concept down though because I'm pretty sure she thought it was Yo Gabba's (as she calls it) party and not hers.
She does however, have the concept of opening presents fully under control.
Earlier that morning, she had woken up to presents in her very own teepee. Unfortunately her other special present didn't arrive in time, but that's ok... she'll get them tomorrow.
This little girl loves to sit down with a pile of books and flick through them all - so now she has a special little place to do that with the added bonus of hiding from her bossy big sister for a little while too.
Her big sister who wasted no time in showing Polly how to play with her presents about 5 seconds after she'd opened them.
At least the little one still can't get involved. Poor Polly, middle child!
If you want to make a teepee like Polly's, I used this excellent tutorial from My Poppet. I thought it would be complicated, but it's actually quite straightforward. The only thing I need to do is trim down my dowels a little (one day!).