When using my foodstamps card, do I need to separate food and non food items?

I just received my ebt card. This is the first time I use food stamps. Usually, I go to the store once a week and buy all I need for the week (food, detergent, diapers, clothing, etc). I'm not sure if at the register do I need to separate the food items and pay them with my ebt card and then all the other stuff? Or can the cashier scan all my stuff and then when I use my card, will it automatically pay only for the eligible items?