{start_tabs}

{tab|desktop-web}

1. Click the **Message...** button at the bottom of the app.

1. Compose your message. You
   can [preview your message](/help/preview-your-message-before-sending) before
   sending.

1. Click the **Send** (<i class="zulip-icon zulip-icon-send"></i>) button, or
   use a [keyboard shortcut](/help/configure-send-message-keys) to send your
   message.

!!! tip ""
    You can also reply by clicking on a message, or using the <kbd>R</kbd> or
    <kbd>Enter</kbd> keyboard shortcuts to reply to the message in the blue box.

{tab|mobile}

1. Tap the **Message ...** text in the compose box at the bottom of the app.

1. Compose your message, and tap the **Send**
   (<i class="zulip-icon zulip-icon-send mobile-help"></i>) button in the
   bottom right corner of the app.

!!! tip ""
    If you're reading messages in a [channel feed](/help/channel-feed),
    or the [combined feed](/help/combined-feed), navigate to the conversation
    view by tapping the message recipient bar of the conversation you want to
    reply to.

{end_tabs}