1 . 写出画线部分在句中所作的成分。
1. The crucial thing is using body language in a way that is appropriate to the culture you are in.
2. However,   you should avoid making this gesture.
3. A good way of saying “I am full” is moving your hand in circles over your stomach after a meal.
4. Perhaps the best example is smiling.
5. Experts suggested smiling to yourself in the mirror to make yourself feel happier and stronger.