Using behavioral groups effectively involves customizing your email content and strategy for each segment. Here are some examples: - Personalized Recommendations: Send product recommendations based on past purchases. - Re-engagement Campaigns: Target unengaged subscribers with special offers or surveys to understand their disengagement. - Abandoned Cart Emails: Remind cart abandoners of the items they left behind, possibly including a discount to encourage purchase. - Welcome Series: Create a welcome email series for new subscribers to introduce your brand and offerings.