When a group is closed, anyone can find the group on Facebook and see who's in it, but only members can see individual posts.
Mgbe a na-emechi otu ìgwè, onye ọ bụla nwere ike ịchọta otu na Facebook ma hụ onye nọ na ya, ma ọ bụ naanị ndị òtù nwere ike ịhụ posts ọ bụla.