curious about BGLO's

[XOZAOSU]

Hi,

I know these are probably really stupid questions but I am really curious...I'm kinda new to the greek scene (initiated this past April) and I really don't know anything about BGLO's, I keep reading all these posts and have no idea what you guys are talking about...what are lines (line sisters?)? Is it an internet thing(i kinda got that impression in a couple of posts)? Is rush different in BGLO's than it is in other sororities? and just out of curiosity has anyone who wasn't african american ever pledged? what are step shows? Sorry but I really have not a clue!! oh and I understand if some of the answers are secret