I took a full day off from work the day after my boss touched my butt.
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means touch so the verb vocab version is to touch.
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you: You're an idiot. You try to touch a saw (さわ).