Sentence:  Mr. Skyros was not a man who thought very much about moral principles ; he found money much more interesting ; but all the same he <WSD>thought</WSD> now , uneasily , of the way in which Angelo earned his living - and paid for his own stuff - and eyed the soft smile , and the spaniel like dark eyes , and he felt a little ill . 
Meaning of the word marked with <WSD> tags:  use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments