Action Details
Requirements and how-to articles for Mixer's action:

Create a Mixer profile to be able to live stream gaming footage and interact with your audience in real time.

You need this to get it done:

Microsoft Account
A Microsoft account is required to use Mixer, so either sign in to existing one or create a new one.
Email Address
An email will automatically be sent to the email address you provide with a confirmation code.
Choose a username (you can change this once every 30 days.)
Profile Image
An image/logo to represent your channel.
Maximum file size: 6MB
Minimum dimensions: 256 x 256 pixels
Channel Intro
Information about you and your channel (this is visible when a link to your channel is posted on Twitter, so it is recommended to put the important information first.)
Social Media Accounts
You can add links to your other social media accounts to your profile.
Requirements missing or found errors? Report

How-To Articles
A list of useful links for you:

Mixer - Profile Setup
Official information on setting up your Mixer profile.
Mixer - Manage Channel Settings
Official information on how to manage your Mixer channel settings.
Mixer - Creating An Account
Official information on creating a Mixer account.
Link missing here or found errors? Improve How-Tos