And something in her air and manner of walking.

还有言谈举止。

She must have noticed the eccentric life led by that lonely man, his nocturnal expeditions, his manner of walking in the streets and of throwing any who might follow him off the scent.

她一定注意到了那个孤独的人过着古怪的生活，他的夜间探险，他在街上行走的方式，以及让任何可能跟随他的人都无法察觉的方式。