<human>: Objective: how do you whisper to someone?

Which of the following solutions is more sound in terms of naive physics reasoning?

OPTIONS:
- speak very loudly to where everyone but the person you're speaking to can hear what you're saying.
- speak very quietly to where no one but the person your speaking to can hear what you're saying.
<bot>: speak very quietly to where no one but the person your speaking to can hear what you're saying.