Building anticipation is about giving people a reason to look forward to what's coming next. You can mention a hint of what the next email will include, like an upcoming announcement, a useful tip, or a surprise offer. When readers know something interesting is coming, they're more likely to open future emails. Consistency also helps; if your emails always deliver value, people naturally expect the next one to be good. Some brands use short stories or questions that continue in the next message, which makes readers curious to see the ending. What kind of approach do you think makes people eager to open the next email without feeling pressured?