No behavior happens without a prompt: If you don’t have a prompt, your levels of motivation and ability don’t matter. Either you are prompted to act or you’re not. No prompt, no behavior. Simple yet powerful.

Designing prompts is a skill you can learn and practice.

An Action Prompt is a behavior you already do that can remind you to do a new habit you want to cultivate.

Action Prompts are so much more useful than Person Prompts and Context Prompts that I’ve given them a pet name: Anchors. When talking about Tiny Habits, I use the term Anchor to describe something in your life that is already stable and solid. The concept is pretty simple. If there is a habit you want, find the right Anchor within your current routine to serve as your prompt, your reminder.

... the formation time of a habit depends on three things.

• The person doing the habit 

• The habit itself (the action) 

• The context