To become a Public Trader, you just need to use 'Make Profile Public' toggle. You will be able to provide information about yourself and your trading strategy in the pop-up window. Once your profile is public, other traders will be able to follow, message and rate your profile. Traders with the best ratings will be featured at the top of the list in the Traders menu. Please note that there is no limit on the amount of the concurrent followers you can have.
You will be able to edit your public profile in the Settings menu. You can deactivate the toggle through Dashboard as well.