to ignore a situation, topic, issue, etc. so as not to cause troubles or difficulties

寝た子を起こさない, 余計な波風を立てない
to simultaneously support two opposing parties, particularly to increase one's gain

両方にいい顔をする, 双方につく
to take action in order to prevent a probable failure or defeat

状況を救う, 窮地を救う
used when there is good reasoning behind one's seemingly strange or crazy behavior

ちゃんと理由がある, 見た目ほど無茶ではない
to be specially careful, gentle, or considerate when dealing with someone or something

慎重に扱う, 腫れ物に触るように扱う
to make good use of the things that are at one's disposal so as to succeed or gain something

うまく立ち回る, チャンスをうまく生かす
to be wise enough to avoid certain behaviors or thoughts

それくらい分別がある, そんなことをしないだけの常識がある
to try to achieve the best outcome possible when dealing with a difficult or bad situation

不利でも何とかする, 悪条件で最善を尽くす
to choose a cautious course of action in a situation where there is uncertainty or potential risk

安全策を取る, 念のため慎重にする
used to tell someone to avoid trouble as much as possible

自分から厄介事に首を突っ込まない, できるだけ面倒を避ける
to follow the accepted or correct path toward reaching one's goal or desired outcome

正式な手続きを踏む, 正規のルートを通す