- Exchanges: Every semester the fraternities ask a sorority to an exchange. An exchange is where all the girls and all the guys of a house go to a bar, club or restaurant in LA to party and dance the night away. Each semester we have two or three exchanges. This year we had them with Lambda Chi, Sigma Chi, ATO, and Sigma Nu. The best part of an exchange is dressing up for the themes. Over the past couple years our themes have been everything from "High School Cliques" and "Jock Jams" to "As Seen On TV" and the classic "Toga Party."
