Registration for Google I/O includes three full days of Sessions, Codelabs, Demos, App Reviews, Office Hours, admission to the After Dark reception, and attendance at the Keynotes. We also provide complimentary breakfast, lunch, and snacks each day. In addition, attendees receive a festival badge and may be offered additional gifts. If you aren’t sure whether the professional guidelines for your school, university, organization, or agency would allow you to accept these items, please check with your local ethics officer before the event. The food and gifts are optional, so it may be possible to attend Google I/O even if you cannot accept any giveaways.