As checkboxes are potentially confusing UI elements, here are a few tips for drafting them.
Let's start with a classic tip: verbs clarify the intent.
Headings help too and avoid repetitive verbs.
Don't break the mood; match the mindset polarity. For example, in Sign Up:
Maybe it's a Selector
The alternative might be unexpected to the user.
Maybe it's a Button
Checkboxes imply options, Buttons actions. If toggling requires confirmation, it's closer to an action.