Yes, it is possible to pick up your order in a store if the seller has a store, it is even recommended for the planet!
You just have to select "Pick up the product in store" when you choose the delivery method from the product page and your cart.
The order is usually ready within 2 to 4 days. You will receive an email when the order is ready to be picked up.
Don't forget to bring your confirmation email when you pick up your order.