Bridal Shower RSVP Etiquette?

The question I have are about the people who do not RSVP. My maid of honor is doing an awesome job and she sent me a list of the people who did respond, however I know of several who mentioned they were coming and did not RSVP to her. Should I contact those people and ask them to please let her know if they are attending? I know she is trying to get an accurate head count for everything. I just want to help her out, but I don't want to pester my friends and family. What do I do?