Open the event link in a web browser or the Partiful app, and click on your response! If you're not sure yet if you can make the event, you can pick Maybe to be able to view the event details.
Once you click on your response (such as "Going"), you'll be asked to enter your name and your phone number in order to verify your RSVP.
After you enter your phone number and press continue, you'll get a code texted to your number. Enter that code in the popup in order to verify your number.
Once you complete your RSVP, you'll be able to see all of the event info and comment on the Activity Feed!