You can see how the draw is done in the previous winners announcements:
https://steemit.com/makesteemitgreat-again/@fibrefox/steemit-bingo-game-1-winners-announced
https://steemit.com/makesteemitgreat-again/@fibrefox/steemit-bingo-game-3-winner-s-announced
Sometimes I make some changes to the rules so it is a little bit different, and I hope that I can automate the process and stream it one day! For now I do this manually and that's why I don't run this contest every week :p
Would love to set one up for @thehive next time if there's interest :)
I won't say no to free advertisement, I am unsure how you set it up for The Hive We do not hold contests as such, But you are welcome to advertise the game through our group if it is helpful. Contests are the IFC area and I dislike the thoughts on infringement on that. You are welcome to come over and have a look around the group see how we do things, https://discord.ggSQ3zSsp