Man Raising Hand on Discord

What it signals here

server usage

Used in general chats to get the attention of moderators or admins, or to volunteer for server events.

reaction use

As a reaction emoji on messages to indicate agreement or 'this is me' energy.

emote mapping

Mapped to custom server emotes like :raisedhand: or :pickme: in many gaming and community servers.

gaming context

In gaming servers, used to volunteer for team slots or to say 'I want in' for a session.

role meaning

Sometimes used when responding to role-assignment messages or event sign-up threads.

See it elsewhere