{start_tabs}
{tab|desktop-web}
1. Click the **Start new conversation** button at the bottom of the app, or
use the C keyboard shortcut.
1. _(optional)_ You can change the destination channel for your message using
the dropdown in the top left of the compose box. You can start typing to
filter channels.
1. Enter a topic name. Auto-complete will provide suggestions for previously
used topics.
{!compose-and-send-message.md!}
!!! tip ""
You can click on the
**Clear topic** () icon
near the upper right of the compose box to erase the topic name.
!!! warn ""
In Zulip, you can compose a message to a different place than the one you
are viewing. In this situation, the message feed will fade to indicate
what's going on.
{tab|mobile}
1. Tap the **Channels**
()
tab at the bottom of the app.
1. Tap on the desired channel.
1. Tap the compose box at the bottom of the app.
1. Enter a topic name. Auto-complete will provide suggestions for previously
used topics.
1. Compose your message, and tap the **send**
()
button in the bottom right corner of the app.
{end_tabs}