How Should You Remind Guests to RSVP?
Make sure you give a date by which you want RSVPs, and a method or two to reach you (a phone number is best, says Post). Then, one week before the party, call any families you haven’t heard from and say, “I wanted to call to see if Johnny was going to be coming to the party. This is the time and date again. Please let me know—I’m just trying to get an accurate head count.” You’re not being pushy by giving a friendly reminder.