Create an event using meetup.com or Facebook and recruit some interesting speakers. Drinks and snacks are always nice.
In describing your event, remember to specify the intended audience – e.g., beginners, intermediates, developers, or architects.
Choosing the right day and time is essential for a good turnout. Midweek in the evening tends to work best.
Publicize your meetup as widely as possible! Reach out to the community team, and we will publish your event in the #announcements channel.