How to Teach a Bot to Use Filler Words and Characteristic Speech Patterns

How to properly add characteristic phrases like to a bot’s speech so it sounds more natural. You’ll learn why general commands don’t work and how to use targeted rules to achieve the desired result.

Adding conversational phrases like "well," "kinda" and "you know" to a bot’s speech is one of the most delicate tasks in configuration. If done incorrectly, the bot’s speech can sound either too mechanical or unnatural — like it’s repeating the same phrases over and over.

In this article, we’ll cover two simple rules that will help you configure your bot.

Why the “Use filler words” Command Doesn’t Work

Trying to teach a bot to use conversational speech with a general command in the scenario, such as “Always use filler words”, leads to two negative outcomes:

  • The forgetting effect. The bot inserts a couple of these words at the beginning of the conversation, and then switches to standard, mechanical language.
  • The looping effect. The bot uses filler words too intrusively. For example, it starts every sentence with the word "kinda" which sounds unnatural and will irritate users.

To make the bot sound natural, don’t use broad, general instructions. Instead, write specific phrases in quotation marks and specify the frequency or conditions for their use.

How to Properly Configure Conversational Phrases

Rule 1: Set the Frequency of Use

Instead of the word “Always”, specify the exact interval at which the bot should insert conversational words. Be sure to list the words themselves in quotation marks.

🤓 Example command for a scenario:

Once every two replies, allow filler words like "kinda" in your speech.

Rule 2: Use “If… then…” Conditions

For more complex and emotional reactions, use the logic “If the user does this, then respond with this”. This helps the bot react to the user’s behavior with lively, pre-written phrases.

🤓 Example command for a scenario:

If the user speaks in very general terms and doesn’t answer the questions you asked, respond: “Well, why are you talking nonsense, I kinda asked about something else.”

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