If it's easy in the hotel, just say, "Let me sing a nice song for my good friends present. I wish you happy every day, happy every day, and give it to our lovers today. I wish them mutual affinity, hand in hand and happiness forever. " What if you sing in front of someone else's house and no one is watching downstairs? These people are very clever. "Let's invite our beautiful (handsome) singer (in fact, he means himself) to bring a beautiful song to our neighbors and friends." In fact, it is ok not to talk, but in fact, the wedding ceremony can exercise people. There is no pressure, so don't be nervous. If your mouth is too stupid, stop talking.