Sentence:  With this seven-word sentence - though the speaker undoubtedly thought he was dealing only with the subject of food - he was telling things about himself and , in the last two examples , <WSD>revealing</WSD> that he had departed from the customs of his culture . 
Meaning of the word marked with <WSD> tags:  make known to the public information that was previously known only to a few people or that was meant to be kept a secret