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: Just imagine you're putting down Oreos (お). One after another. Each oreo that you try to put down say in your head "Hello Mr. Oreo, I'm going to put you down.. ooh yes, you like that don't you?" REPEAT.
Fugu and I are putting some distance between us right now.