Gift for 6 years old girl

[fireworks345]

I will be introduced to my new DP's best friend and his family next weekend. They have a girl who is 7. I would like to buy something small for her, but I'm clueless as to what I could get her. What do girls at her age play with?
Thanks in advance for any suggestions

Squishmallows
Gel pens and note pads
Make your own jewellery kit

We have just bought a glitter tattoo set.
A fluffy note pad and stationery set
A hair dye chalk set. (Maybe not ideal if you don't know the parents very well yet)

Notebook and Gel pens is good
Maybe a lego set

My 6 year old loves lego (particularly lego friends and the Frozen sets), sparkly pens/stickers and craft stuff.

She recently chose a lockable diary (with pens and stickers) at a Father Christmas event.