Lois seems to be the leader at the sorority that hopes to get
Sidney to join up as a member. Sidney, Hallie's best friend is
helping them out since she is rushing that same sorority and
think it will help her chances of getting in.

She doesn't seems to be an extremely nice person, actually
quite stuck up and obnoxious. And she is also a big party
girl who likes to get wasted as quickly as possible. You
know the type...popular, the cutest boyfriend...

Does her wild ways make her an easy target for Ghostface?
No--Ghostface doesn't even try to kill the bitch-unfortunately.
While everyone is getting murdered-she is most likely with
Murphy--pasted out somewhere or at her boyfriends house.