Utilize your resources by having your own members give an educational presentation. If your group is small, then have only a few officers. A campus or chapter liaison provides a vital link between alumni chapters and the campus chapter. This individual advises the board as to the needs of the students. Many times, this person is also responsible for recruitment at the alumni level.
Many events are more successful and allow for socialization when food is served.
You may desire a pizza party, which is inexpensive and fun. Meeting at a local restaurant is also a good idea. This allows you to informally meet prospective members and explain Alpha Tau Delta to them. Ensuing meetings can be held more formally in smaller, quiet places to discuss business. Many individuals value their time.