What should i wear to my induction?

I've just received a call back about a job in a toy store and they've given me a job and the induction is tomorrow! I'm not sure what to wear as the last induction i went to was for Tesco and i dressed quite smart (tight skirt, blouse, cardigan) and everyone else was just in their everyday clothes so this time i think i'll just wear my black skinny jeans with heeled boots and a jumper do you think this would be ok? (i'm female, 18)

Also another question, they're giving me 2 shirts to wear for the job but i have to buy black trousers and black shoes (not dolly shoes) could anyone suggest where i could buy black trousers for smaller women (i had some before but they were too big and really unflattering) and what kind of shoes i need, i'm guessing trainer type black shoes but if anyone could link me to what i should buy that would be great??!