雅思口语P2 Describe an occasion when many people were smiling(文字版)

Mention about the topic, a time when I was in a wedding ceremony comes to my mind. In fact, my college roommate got married a couple of weeks ago. His girlfriend and him got in a relationship since they were on the first year of university life. It has been a long time undoubtedly. I remembered it was a sunny afternoon on a grassland, a bunch of his friends, relatives and classmates witnessed his important moment. I went there with other classmates, five of us. We felt really happy, I didn't know how to describe it, but kind of like that was our wedding ceremony. All the people who stood there certainly put their smile of joy on face. Every single person at that moment behaved in that way. I could say it was more of a way of giving their best luck to new couples. In the meantime, I found that the smile and many happy things can be shared. Happiness is something can be shared as well. So, I would say smile is the most powerful thing in the world, it really makes us feel very relaxed and comfortable in life. We should stay happy and put a smile of joy on face all the time. That is it.