He is a man of few words.

他是个沉默寡言的人。

He's a man of few words, very polite and unassuming.

他不爱说话，非常有礼貌，也不装腔作势。

He was a man of few words with a delightful dry sense of humour.

他话不多，很幽默，却又不形于色，让人很愉快。

My father is a man of few words who expresses his love for me through his action.

我的父亲是个少言寡语的人，他通过行动来表达对我的爱。

My father is a man of few words, but somewhere deep beneath the surface of him lies a caring character.

我的父亲是一个少言寡语的人，但是在其外表之下内心深处的某个地方保留着关爱他人的品格。