Keep in mind that racism, sexism, classism, heterosexism, transphobia, and other issues can arise. As the group leader, an important part of your role is to address inappropriate language and behavior and actively uplift voices of often marginalized groups.
As an event organizer, you will gain access to attendees' names and phone numbers, and you may gain access to email addresses. This information should only be used for UltraViolet purposes, unless you have the expressed permission from attendees to contact them for other reasons.