Three filler words that lower your closer-score 18%.

Most rep coaching treats filler words as a confidence problem. Stop saying "um." Stop saying "like." Look more polished. Sound more confident.

That framing is wrong, and it's why the coaching doesn't stick. Filler words aren't a confidence problem. They're a cognitive load problem. They show up when the rep is buying time to think — and the buyer can hear it.

Across 1,200 scored B2B sales calls, three filler words account for ~80% of all filler-word penalties. We measured what removing each one does to the composite closer-score.

The three.

1. "Just"

The most expensive filler word in B2B sales. Average rep uses it 14 times in a 30-minute call. Average winning call: 2 times.

"Just" is a hedge. It signals you're apologizing for asking — for taking time, for the price, for the question. The buyer reads it as low conviction. The scoring rubric flags it as champion-language degradation.

Score impact: removing "just" lifts the buying-signal-mention dimension by ~4% and the next-step-clarity dimension by ~3%.

2. "I think"

The second most expensive. Reps use it to soften assertions they're not sure about. The buyer reads it as: "this person doesn't actually know."

If you say "I think the SOC 2 cycle takes 90 days," and you're right, you sound less authoritative than if you'd said "the SOC 2 cycle takes 90 days." If you're wrong, you wasted the hedge anyway.

Score impact: removing "I think" lifts pain-articulation by ~5% and decision-maker-confirmation by ~4%.

3. "You know"

The third most expensive — and the most insidious. Reps use it as a verbal nod, asking the buyer to confirm understanding. But it sounds like the rep is asking permission to keep talking.

Every "you know" is a micro-interruption. The buyer's brain has to decide whether to nod or interject. Repeated, it becomes exhausting to listen to.

Score impact: removing "you know" lifts talk-listen ratio by ~6% (because you're using fewer words for the same content) and the discovery-depth dimension by ~3%.

The composite.

Removing all three filler words across the rubric lifts the composite closer-score by ~18% on average. That's a one-point lift on a 14-point scale — the difference between a 7.5 and an 8.5. The difference between "we'll think about it" and "let's set up next steps."

How to drill it.

Removing filler words is the easiest score-lift in the rubric — but only if you do the drill. Reading this article won't fix it. The drill is:

1. Score your last 3 calls. Read the filler-word density line on each ticket.
2. Pick the worst offender of the three words. "Just," "I think," or "you know." Most reps have one that's 3x worse than the others.
3. Run your next 5 calls intentionally swapping it. When you'd say "I just wanted to" — pause, say "I'm following up on." It feels weird for a week. After two weeks, it's automatic.
4. Score those 5 calls. Watch the dimension trends move.

That's the loop. Two weeks. One word. ~6% closer-score lift.

— Closerbell, scored across 1,200 anonymized B2B sales calls, 2026.