How to Practice Your Pitch Deck with Loom

The deck is the script. The pitch is the performance, and investors fund the performance. Loom is a screen recorder, not a live call — which makes it built for one specific job and better at it than anything else: record your pitch once, send a link, and collect feedback from several people without scheduling a single meeting.

This guide covers practicing with Loom specifically. Want a live rehearsal where someone interrupts you in real time? See the Zoom guide or Google Meet guide instead — and the complete guide to practicing your pitch deck for the full picture.

Why Loom, specifically

A live rehearsal needs everyone in the same 30-minute window. Loom removes that constraint. You record the pitch when you’re ready, drop the link to five advisors, and each watches when they have ten minutes — then leaves comments pinned to the exact second of the video.

That changes the feedback. Instead of “it was good, maybe tighten the middle,” you get a comment at 1:42 saying “lost me here — what does the product actually do?” and another at 3:10 saying “this is the strongest slide, lead with it.” Specific, timestamped, from several people, zero calendars.

Loom records whatever is on your screen, so first get your deck into presentation mode, then point Loom at it.

Open your deck as a slideshow:

PowerPoint: Slide Show tab → From Beginning. To keep it windowed, use Set Up Slide Show → Browsed by an individual (window).
Keynote: Play menu → Play Slideshow (or In Window to keep it windowed).
Google Slides: open the deck and click Slideshow.

Then set up Loom:

Open the Loom desktop app (best for slides) or the Chrome extension.
Choose Screen + Camera — you want your face in the corner bubble, not just the slides. Investors watch your delivery, so you should review it too.
For the recording area, pick:
- Full Screen — for PowerPoint or Keynote running full-screen.
- Current Tab — for Google Slides; record the Chrome tab with the slideshow.
- Window — if you opened the slideshow in a window, record just that window so nothing else leaks in.
Position the camera bubble in a corner that doesn’t cover slide content.
Click Start Recording and deliver the pitch — out loud, standing up, start to finish.

When you stop, Loom uploads automatically and gives you a shareable link.

Review your own recording first

Before you send the link to anyone, watch it yourself. The replay is uncomfortable, which is exactly why it works. Look for:

Filler words — count the “um,” “like,” “basically.”
Eyes — are you looking at the camera, or reading the slide?
The rushed slide — there’s always one you sped through. Rewrite it.
Energy drop — find the flat 20-second stretch; it’s usually a slide you don’t believe in yet.

Fix the obvious things, then re-record. Don’t send a first take — send the version you’re not embarrassed by, so reviewers spend their attention on substance, not surface.

Send it out for timestamped feedback

This is where Loom earns its place. Share the link with three to five people and brief them — a bare link gets you “nice job.”

Ask each reviewer to:

Comment at the exact moment something works or doesn’t. Loom pins comments to the timeline; “lost me at 2:15” is worth ten “tighten the middle”s.
Flag the first place they got confused. If a pitch loses an investor, it usually loses them once, early. You want that timestamp.
Answer one question: would they take the meeting? One line, yes or no, why.

Pick reviewers who’ll push back — a fellow founder, a mentor, a skeptical friend outside your industry. Because it’s async, you can ask more people than you ever could for a live call, and ask them again next week with a new recording.

Time your pitch with a kitchen or phone timer

Loom shows the total length of the recording, but one number hides the real problem — you need per-slide pacing. A kitchen timer or your phone is all you need:

Kitchen timer — set it for your slot, start it as you begin recording, and put it behind your laptop so you can’t watch it. When it rings, stop. The ring tells you bluntly how much pitch ran long.
Phone stopwatch — hit Lap every time you advance a slide. The per-slide split almost always shows the team slide got 90 seconds and traction got 20, exactly backwards. Rebalance so the slides that win the deal get the time.
Phone alarms — set chimes at the halfway and 80% marks so you build an internal sense of pace.

Never stare at the timer while you record — in the real room you can’t. Use it to review runs, not steer them.

A five-day routine

Day 1 — Read it. Deliver the pitch out loud once, notes allowed. Cut every sentence that sounds like an essay.
Day 2 — Record and time it. Loom recording, no notes, lap-timer per slide. Rebalance pacing, watch the replay, fix your top three issues.
Day 3 — Re-record and send it. Clean recording. Share the link with three to five reviewers and the brief above.
Day 4 — Act on the comments. Read every timestamped comment. Where two reviewers flag the same second, that’s not opinion — fix it.
Day 5 — Full dress. Two clean run-throughs, on the clock, in presentation mode, no notes. If both land inside time, you’re ready.

The one thing Loom can’t do

Loom is excellent for the script, the clock, and the slides. The piece it can’t give you is the room — a recording never interrupts you, and reading written comments later is not the same as being asked the hard question to your face, mid-sentence.

Don’t skip that piece. Pitch live to one of your reviewers on Zoom or Google Meet, and have them interrupt you with the brutal version of competition, “why now,” and “what if an incumbent does this.”

The deck gets you the meeting. Practice is what closes it. Record it, send it, time it — and go say it out loud.

Want the bigger picture, including how Loom compares to Zoom and Google Meet? Start with the complete guide to practicing your pitch deck.