You may be fined. Catering pays more attention to customer experience, and you interact with customers most frequently, so your actions and manners must be centered on serving customers. Playing mobile phone is definitely not allowed! However, it should not be closed. Waiters are usually menopausal women. During this period, women were fierce and had a strong deterrent effect on waiters. New waiters generally need to do more physical labor, because you don't understand the rules there, and the hidden rules are likely to take the blame for the menopausal women mentioned above once or twice.