How can I participate in groups of- Open membership, 2-Unmoderated, 3- All members may post?

Question

how can I participate in groups of- Open membership, 2-Unmoderated, 3- All members may post

Answer 1

you'd first have to locate such groups in the directory- due to spam, many groups do not have all those 3 things available.

good luck

Answer 2

are you a member or owner/moderator? if a moderator, you can set these options in your group. as a member, you have no control over any settings