I am familiar with his every mannerism.我对他的各种习惯了如指掌。

He drummed his thumbs on the steering wheel, an irritating mannerism of his.他用拇指不断敲击方向盘, 这是他一个让人讨厌的习惯动作。

In accent and mannerism he appeared to be completely Eastern European.从口音和举止上看, 他像一个地道的东欧人。