Fluent speakers pause about as often as learners do. What differs is where the pauses land. A confident speaker stops at the joints, between clauses, where a listener expects a break anyway. A learner stops in the middle of a phrase, after a very, before the noun, and that is what a listener hears as struggling.
So the thing to work on is not silence. Trying to eliminate pauses produces fast, breathless speech with the breaks in the same wrong places, and it sounds worse than the slow version did.
Eight ways to build speed
- four four two: same story, less time. Tell the same anecdote in four minutes, then four, then two. It is the best known single fluency drill and it works because the content stops being the problem.
- the same topic three times, to different people or to a recorder, and note that the third telling is always the best one.
- fluency and accuracy trade off in the short term. Deciding which one a given session is for prevents the fight between them.
- speak in phrases, not words. Retrieving a chunk is faster than assembling it, which is what fluency actually is.
- do not translate in your head. It is slower than speaking badly, and speaking badly is what eventually removes the need.
- use fillers deliberately. Silence reads as not understanding; a filler reads as thinking.
- measure words per minute occasionally, because it turns a vague sense of progress into a number.
- hesitation is normal in any language, including your own, and expecting to be smoother in English than in your first language is the wrong target.
The route runs through being fast and wrong
Speed and accuracy do not improve together and they cannot be worked on together, because they compete for the same attention. The useful thing to know is which order they go in, and it is the uncomfortable one: you reach fast and accurate by going through fast and inaccurate, and almost nobody reaches it from slow and accurate.
The reason is that accuracy at low speed is being produced by monitoring, and monitoring is the thing that has to go. A speaker who checks each sentence before releasing it has built a habit that cannot survive at conversational pace, and every additional month of careful slow practice strengthens it. Letting errors through is not tolerance of sloppiness. It is the only way to find out what your English does when nothing is checking it, which is what it will be doing in every real conversation you have.
Where it stops: chasing the speed number
The stall is aiming at rate. A learner decides they speak too slowly, pushes the pace, and produces the same sentence structure delivered faster with the same pauses in the same wrong places. The speech now sounds hurried as well as halting, and the effort produces nothing, so the conclusion drawn is that fluency is a talent.
What moves is the size of the piece you retrieve. Somebody producing three words at a time will always break every three words, whatever rate they are pushing, and somebody who has stored the thing is and it depends what you mean by as single items breaks at the ends of those items instead. Rate is a symptom of chunk size and never a cause of it, which is why it cannot be trained directly.
Looking at your own pauses instead of feeling them
Audacity is free and open source, and its waveform view turns this into something you can see. Record two minutes of yourself talking about anything, look at the picture, and the silences are visible as gaps with lengths. Then read the transcript of your own speech and mark where each gap fell: between clauses, or inside a phrase.
It replaced counting your own pauses while speaking, which cannot be done, because counting is precisely the thing that stops you speaking. The limitation is that a waveform shows silence and not hesitation, so a pause filled with er looks like speech. That is worth knowing and it is not a flaw: a filled pause is doing a job, which is holding your turn, and it is far less disruptive than an empty one.
What it looks like when it goes wrong
The recognisable failure is the mid-phrase stop, and the reason it costs so much is that it strands the listener. Stopping after I went to the leaves them holding an incomplete structure they cannot do anything with, and they cannot help you either, because they do not know what you were reaching for.
The other one is the restart. A sentence is begun, abandoned at the third word, begun again differently, abandoned again. Each restart discards the work already done and the listener has now heard three beginnings and no sentence. Finishing a wrong sentence is nearly always cheaper than replacing it, and native speakers finish wrong sentences constantly.
The material that lets you break at the joints rather than inside them is stored rather than built, which is the argument of getting from correct sentences to an actual conversation, and the exercise that trains chunk size directly, with nobody else present, is speaking along with a recording, and what it fixes.
The open question is what happens to any of this the moment somebody is watching. Every mechanism on this page assumes a fixed amount of attention available for monitoring, and being nervous takes a large share of it before you have said a word, which changes the arithmetic rather than the technique: where the freeze comes from and what dissolves it.