根据句意,选择方框中的单词并用其正确形式填空
rude shake polite smile stare
1.It isn't ____ to point at others with your chopsticks（筷子）.
2.The child ____ at the stranger for a few minutes.
3.We usually ____ hands when we meet each other in China.
4.It's ____ to speak loudly in a reading room.
5.The students did very well in the match and Mr Black gave them a big ____.