我踮着脚尖走出房间，生怕吵醒熟睡的狗狗。

I was ___tiptoeing out of the room to avoid waking the sleeping dog.

他们在讨论敏感话题时小心翼翼，生怕冒犯对方。

They were ___tiptoeing around the sensitive topic, afraid of offending each other.