I also do catering, just when you start, and you, and then do a long time unconsciously on the good, I summarize my own experience is that the guests are anxious when they can not rush, the mind to put the balance, and then don't mess up the situation do not know what they should do good. Then try to send simple food to the guests to let him or her eat first, such as gazpacho, so that guests will not rush you. Try to use simple and clear language to express your meaning so that guests understand.