Speaking of tips, you should never offer the bar staff a cash gr

Speaking of tips, you should never offer the bar staff a cash gratuity. The correct behaviour is to offer them a drink. Pubs pride themselves on their egalitarian atmosphere.『A tip in cash would be a reminder of their service role, whereas the offer of a drink is a friendly gesture.』
【正确答案】：
现金小费会使人联想到酒保是伺候人的，而请他们喝一杯则是友好的表示。