When to use it
Use it when you get a tough question and need a second. Saying you'll take a moment buys time calmly. A few seconds of silence feels long to you but looks thoughtful to the interviewer.
Example
Interviewer: “Tell me about a time you failed.”
You: “That's a good question. Let me take a second to think.”
You: “Okay. Early in my last role, I…”
In an email or Slack message
In a video interview, it's also fine to say “Let me jot down a couple of notes” for a longer question. Keep the pause short and come back with structure.