ないで (Casual Request)(Please) do not (for me), Casual request

Both Verb[ないで] and ないでください are used to express requests not to do something. While ないでください is polite, and can be used with strangers or people equal in status to you, Verb[ないで] (without ください) is more casual, and typically used to make requests of friends or family members in a casual tone. Requests with てください and especially Verb [て] can be followed by ね (e.g. 食べてね) for a softer, more gentle feeling.

The ないで form combines a verb in the negative with で, and has two common uses: (1) to make a negative request, e.g. 食べないで ('Don't eat it.'), and (2) to express 'without doing' something, e.g. 晩ご飯を食べないで出かけた ('I went out without eating dinner.').