> For the complete documentation index, see [llms.txt](https://emotiv.gitbook.io/emotivbci/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://emotiv.gitbook.io/emotivbci/facial-expressions/adding-new-expressions.md).

# Adding new expressions

You can train Facial Expressions at any time by selecting “Train” next to that expression.