Use 'right away' to express the need for quick action or attention.

Immediate Action

'Right away' implies urgency and is often used when there's no time to delay.

Urgent Response

Sometimes 'right away' is used for emphasis, even if immediate action isn't possible.

'Right off' signifies something that happens at the very start or instant.

'Right off' can also imply early success or a positive outcome from the beginning.

Use 'right off' to describe actions or reactions that occur at the start.