Psychological Subject Line Generator

Generate 15 high-open-rate email subject lines for a campaign promoting [Offer Name]. Categorize the output into three groups based on Robert Cialdini's principles of persuasion: 1. 5 Subject lines based on 'Scarcity' (FOMO). 2. 5 Subject lines based on 'Curiosity' (Information Gap). 3. 5 Subject lines based on 'Social Proof' (Results/Testimonials). Keep all subject lines under 50 characters.

Generate 15 high-open-rate email subject lines for a campaign promoting a Webinar on AI Marketing. Categorize them by Scarcity, Curiosity, and Social Proof.