Requirements and skills: Basic math. You must be good at counting, adding, subtracting, dividing, and multiplying to carry out your job well. ... Patience. ... Paying attention to detail. ... Punctuality. ... Ability to work under pressure. ... Interpersonal communication. ... Efficiency. ... Knowledge of the products. Description: receiving payments and issuing receipts, gift-wrapping packages and keeping track of all cash and credit transactions. To be successful in this role, you should have previous experience in a customer service position and good knowledge of how cash registers operate.