From the Clinton website:
"The New Hampshire for Hillary campaign is asking supporters, volunteers and staff to take action on Saturday, May 12th by going door to door, holding phone banks and participating in other grassroots activities around the state. Activities will take place over the course of the day at various times between the hours of 10:00 AM and 4:00 PM. To participate, complete the form to the right in the RSVP box, and someone from our campaign staff will be in touch with additional information. In the meantime, if you have questions, email firstname.lastname@example.org. "