Is the EIJC for astronomers only? No. Do you have friends, colleagues, or students in other departments who would be interested in joining? Please invite them to sign up or just come for the discussion.
What if there's a topic not on your list that I want to discuss? Just choose a day to sign up and indicate what you want to talk about.
Do I have to be an expert in the topic I want to present on? Do I have to be a woman or a minority to present on certain topics? No. Just be interested and willing to learn.