提示：1）What are the man and the boy doing?
2）What kind of influence does using mobile phones may bring?
3）What is your attitude (态度) towards this behavior?
要求：1）短文须包括所有提示内容，可适当发挥；
2）短文中不要出现真实的地名、校名和人名；
3）词数80个左右（开头已给出，不计入总词数）。
参考词汇：secretly; technology; natural; convenient; focus on (集中注意力在……上)
We can see a man and a boy in the picture. The man is
