Sentence:  Gabriel coloured as if he felt he had made a mistake and, without looking at her, kicked off his goloshes and flicked actively with his muffler at his patent-leather shoes. ... When he had flicked <WSD>lustre</WSD> into his shoes he stood up and pulled his waistcoat down more tightly on his plump body. 
Meaning of the word marked with <WSD> tags:  Shine, polish or sparkle.