When to use it
Use it when you share a draft and want useful feedback. Pointing the reviewer to the section you're least sure about gets you better comments faster, and it implies you're comfortable with the rest. Pick the part that actually needs a second opinion.
Example
You: “Here's the draft. Can you focus on section 2? That's where I made the pricing assumptions.”
Manager: “Will do. I'll look tonight.”
In an email or Slack message
In the email: “Draft attached. Can you focus on section 2 (pricing assumptions)? The rest is ready unless you spot something.” A clear ask makes it easy to reply.