# Welcome! This guide shows you how to use Think2Switch™—a tool that lets you control things using brain signals. You’ll learn how to: * Put on your headset * Practice a thinking signal * Use your thoughts to control things Most people can start in a few minutes. You can go at your own pace. We’re happy you’re using Think2Switch™ 💜 --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://think2switch.gitbook.io/think2switch-knowledge-guide/think2switch-2.4/welcome.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.