I'm a member of a national Latina sorority, and here are some things that I would recommend that aspirants NOT do at informationals or other recruitment activities:
1. Don't talk about the men in the campus Latino fraternity--don't talk about how you always hang with them, how hot they are, how much you hate them, etc. Refrain from asking if that fraternity is the "brother" organization to the sorority you are interested in. For one thing, you could find out that information ahead of time, and second, why does it even matter?
2. Don't talk about how much you love the sorority's jackets, t-shirts, etc. It makes it look like you are interested just so you can wear letters.
3. Likewise, don't ask about the parties, unless you are asking a question about maintaining balance between academic, service, and social activities.
4. Don't lie. Ever. You will be found out. Further, don't assume that the NPC and NALFO orgs. don't talk to each other. If you first go through NPC rush, do something shady, then try to join a Latina or other non-NPC sorority, it will come out (or vice-versa). When I was chapter president, I had many conversations with the NPC presidents on particular women, and we usually caught them in some sort of lie.
5. Never put down the other Latina sororities (or any sororities) on campus. It is not going to win points at all.
6. If you are invited to participate in the prospective membership process, DO NOT go to the local greek shop and pre-order sorority gear, no matter how "close" you feel that you are to becoming a member. You WILL get caught!
7. Finally, if you don't get invited to pursue membership, or if you do but you drop out, don't be tacky and start an entirely new sorority just so you can call yourself a "founder." At least show some discretion and lay low for awhile if you're going to try to pursue another sorority...but do know that the next sorority WILL ask the first sorority about you...
Things to DO:
1. Do study...HARD! Keep up your time management skills!
2. Definitely talk about your past community service and leadership experiences, as well as other interests at information sessions. We want to get to know you as much as you want to get to know us!
3. If the chapter puts on campus-wide events or activities, you should participate.
4. Think very hard about whether this is the right time for you to take on the responsibility of being in a sorority. Are your grades where you want them to be? Are you actively working towards graduate school, an internship, etc.? Do you have time to go to meetings, hold a leadership role (because most LGLO chapters are small, and EVERY PERSON has to hold an office, sometimes two), participate in service activities, hold down a job (or two), etc.? Will your family understand that you are making a commitment to the organization that will likely take you away from time with them? (This is a HUGE issue in LGLOs).
5. Relax, and be yourself.