Publicity
Bottom line...without publicity, you don't have a program.  It is essential to get the word out to EVERYONE on campus when you have a program planned.  Below I have included every form of publicity that I used and found helpful this year.  However, the form that I found most successful was word of mouth and personal invitations.  People are responsive to individual attention, so your best bet is to just talk it up to everyone you see. 
In Hillel

Out on Campus

Greek Community

Tabling

Targum (Daily Newspaper)
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