To vote for AFP (America's Favorite Player) or America's Favorite Houseguest in Big Brother 27:

1. Go to the official CBS voting page for Big Brother at cbs.com/bbvote or cbs.com/shows/big_brother/vote/.
2. Log in or enter any email address to start voting.
3. You have 5 votes per day that you can allocate to any of the 17 eligible houseguests.
4. By watching an advertisement, you can unlock an additional 5 votes daily. You cannot apply these extra votes to the same houseguest you already gave 5 votes to.
5. Distribute your votes as you wish, casting up to a total of 10 votes each day.
6. Voting is open until September 28, 2025, at 9 AM PT.
7. The winner is announced at the Big Brother 27 season finale.

This process allows fans to support their favorite houseguest for a $50,000 prize by casting votes daily online through CBS.