If you've been enrolled in a 360 feedback event, you can pick anyone in your Howamigoing account as a 'feedback giver'.
This means that if an Admin has added contractors, freelancers, clients, friends, relatives or prominent politicians (π€) to your Howamigoing account, then you can choose them to give you 360 feedback. Word to the wise: don't ask Trump for feedback. It usually ends up being more about him than you, and it's always a glowing reference.
BUT! Please note that your direct manager is automatically included as a 360 feedback provider for you. SO... if you need to pick between 3 to 5 people to give you feedback, you really only have the choice of 2 to 4 people.