我相信笑容不必加工，快乐因为感动，真心的互动（翻译成英语）

我相信笑容不必加工，快乐因为感动，真心的互动
I believe that the smile needs not processing,
the happiness comes out from the heart-touching,
it is really a wholehearted interaction!

那当然

I believe that our smile is natural, our happiness comes from moving, the interaction is from the depth of our heart.