A good rusher puts each PNM at ease. She makes the PNM forget that she is at a rush party and essentially being interviewed, and makes the PNM feel as if she is simply talking to a new acquaintance.
A good rusher has more insightful questions than "What dorm are you in?" and "What's your major?" and the dreaded "So, do you have any questions about XYZ?" (That last isn't necessarily a bad question, but it is bad when
every single sister at XYZ asks that question!
)
A good rusher can think on her feet, so that if a PNM does say/ask something awkward, she can keep her cool and respond and steer the conversation elsewhere.
A good rusher has good recall, so that she can remember who she spoke to at each party and what she learned about each PNM.