Why don't you try to make him listen to you somehow?
Maybe you could try to make him want to listen to you.
Try to think of some tactics to make him listen to you.
ご質問ありがとうございます。
① "Why don't you try to make him listen to you somehow?"＝「彼があなたの話を聞くように何とかしてみたら？」
② "Maybe you could try to make him want to listen to you."＝「彼があなたが言っていることを聞きたいようにすることができるかもしれないよね。」
③ "Try to think of some tactics to make him listen to you."＝「彼があなたのことを聞くように戦略を考えてみたら。」
ご参考までに。
アメリカ合衆国 
