Your first hello on a video call gets judged. How much time do you have?
Before your update even starts, 320 listeners in a voice study rated 64 brief hellos for traits including trustworthiness.
By Maria Lee·
You know the tiny pressure point at the start of a call. The camera turns on, faces appear, and someone says your name. Before you give the update, ask the question, or answer the interviewer, you have to say one small word: hello.
That word feels too small to matter. But in a PLOS ONE experiment, 320 participants rated 64 short recordings of people saying hello, and the ratings covered personality traits including trustworthiness. The uncomfortable question is the one in the headline: how much time do you actually have before that first impression starts? We will get to that at the end.
- Participants who rated voices320count
- Hello recordings rated64count
- Personality rating scales10count
PLOS ONE reported that 320 participants rated 64 extracted recordings of the word hello on one of 10 personality traits.
Why the first word carries more than content
A greeting is not a pitch, and it is not a full answer. Still, it carries cues. Your pace, tone, volume, steadiness and warmth all arrive before the substance does. On a video call, that matters because the listener is already orienting themselves. Who is speaking? Are they calm? Do they seem open? Can I trust what comes next?
The PLOS ONE study did not ask listeners to decide whether someone was good at their job. It asked them to rate social traits from the same spoken word. That is the part that maps onto real professional moments. In a job interview, sales call, performance review or networking chat, the first word is not the whole impression. But it can be the doorway into one.
Trust was one of the traits listeners rated
The list of traits was broad. PLOS ONE wrote that each participant was assigned to one of 10 rating scales: aggressiveness, attractiveness, competence, confidence, dominance, femininity, likeability, masculinity, trustworthiness and warmth.
| Trait | Why it matters at work |
|---|---|
| Trustworthiness | The listener decides whether the voice feels safe to keep listening to. |
| Competence | The listener hears whether the speaker sounds sure enough to follow. |
| Confidence | The listener picks up steadiness before the message begins. |
| Warmth | The listener senses whether the exchange feels open or tense. |
| Likeability | The listener forms a social impression from the greeting. |
| Dominance | The listener hears how forceful the speaker sounds. |
| Aggressiveness | The listener may hear tension, edge or pressure. |
| Attractiveness | The study included it as a social perception trait. |
| Masculinity | The study included it as a voice perception trait. |
| Femininity | The study included it as a voice perception trait. |
The 10 traits listeners rated from a hello.
That does not mean you should try to sound like someone else. It means the opening is not neutral. If your first hello comes out rushed, clipped or barely audible because you are thinking about the answer after it, the listener may already be receiving information you did not mean to send.
The part most people rehearse comes too late
Most people prepare the main event. They rehearse the interview answer, the quarterly update, the client pitch or the reason they deserve a raise. That makes sense. The stakes are in the substance.
But the opening word often gets no attention because it feels automatic. You join the call, clear your throat, say hello and only then start performing. The study raises a different possibility: the performance may have started while you thought you were still warming up.
So how much time do you have? Not a full sentence. Not a polished opening line. The measurement window in the experiment was far shorter than the part most speakers practice.
How much time do you have?
The answer is 390.5 ms, on average. PLOS ONE described the measurements as being taken across the duration of each sound, with an average 390.5 ms window.
The paper also reported average stimulus durations of 391 ms ± 65.1 ms for male voices and 390 ms ± 64.1 ms for female voices. In plain English, listeners in this experiment were judging traits from a hello that lasted well under the time it takes to deliver a normal opening sentence.
That does not prove every hiring manager, client or colleague makes a fixed decision that fast. The study measured ratings in an experiment, not real hiring outcomes. But it does show that listeners can form trait judgments from a very short hello. If you only rehearse what comes after the greeting, you may be skipping the first sound they hear.
What this means for you
Do not overthink your hello. Make it repeatable. Before an important call, say your first greeting out loud once or twice, at the volume you will use on the call.
Start with air, not speed. Take a quiet breath before you speak, so the word does not come out squeezed.
Let the greeting land. Say hello, pause briefly, then continue. Rushing can make the start sound smaller than you intend.
Match the room. A warm hello works for a networking chat. A steadier, cleaner hello may fit an interview or pay conversation.
Practice the first sound, not just the first answer. Your opening word is part of the impression, even when the real message comes next.
Sources