HI, Gina is a Discord messaging service, she basically notifies you whenever something happens on Steem, like if you get an upvote or a resteem, receive a memo or a comment etc.

To register, you simply go to our discord channel https://discord.buildteam.io and then register your Steemname there, she will give you a reference that you have to then send to her as a memo.

You can also learn more from historical blog posts.