Signing up for Prolific is simple: create an account at Prolific.com, verify your email, and complete your demographic profile in detail, as this information determines which studies you qualify for. Once approved, regularly check your dashboard for available surveys, as spots can fill quickly, and consider enabling notifications to catch them in time. Always answer questions honestly and carefully to maintain a high approval rating, which increases your chances of receiving more invites. Withdraw your earnings via PayPal once you hit the minimum payout, and stay active by updating your profile to match new eligibility criteria, ensuring steady opportunities and better rewards over time.