# Greeting
The first message is an essential part of the interaction, as it sets the tone and style in which the character will communicate.
**The first message of the character should be relatively long to ensure that the character's replies are unlikely to be very short in subsequent messages.**
* You can also use asterisks \*\* to describe the character's actions.
* The greeting message also supports {char} and {user} variables. Be sure to use these variables instead of personal pronouns to get better response quality.
* If you want the character’s response in the greeting to cover an image, you can use markdown syntax to represent this. Example:
```
```
---
# 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://book.rochat.ai/rochat_book_en/how-to-create-a-character-on-rochat/create-character-method-1-custom-creation/greeting.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.