# Customizing bot interactions with users in Lex V2
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Learn about the following features that you can use to customize bot interactions with your users by expanding and adjusting their default behavior:

**Topics**
+ [Analyzing the sentiment of user utterances in conversations with your bot](sentiment.md)
+ [Using confidence scores to improve conversation accuracy](confidence-scores.md)
+ [Customizing speech transcriptions for use with your Lex V2 bot](customizing-speech-transcriptions.md)
+ [Using audio filler to improve bot responsiveness](customizing-speech-audio-filler.md)