Show YOUR own style and make it trendy. Wear current trends and for a bonus wear something from H&M.
Avoid wearing anything seen as inappropriate such as crop tops, spaghetti straps, tube tops, short shorts, etc.
Business casual or to make a real impression: wear the latest trend pieces in the front of the store or front of the department you are shopping in!
Wear an outfit that represents YOUR style. However, keep it appropriate and classy.
I would dress professionally and look really presentable.
I would dress very appriate
Friendly, goal oriented
White blouse and black tailored pants and cover in black flat shoes
You should look fashionable, have your own original, yet appropriate, style. H&M really encourages difference senses of styling.
Dress clothes, if not wear dark coloured pants and clean button up shirt
They look for specific things in the interview; fashion, and values are among those. they want people who work for them to be like them (fashion forward, friendly, team oriented, ambitious, etc.)