observing
v. 注意到，观察到；注视，监视；（在科学研究中）观测，发现（observe 的现在分词）
例句
The army was observing a ceasefire.
军队当时在遵守一项停火协议。
《柯林斯英汉双解大词典》
We change our behaviour by observing the behaviour of those around us.
我们通过观察周围人的行为举止来改变自己的行为举止。
She saw that there was indeed a man immediately behind her. Moreover, he was observing her strangely.
她看到的确有个男人紧跟在她身后。而且，他还在怪异地观察着她。
