Email open rate is the number of people who open your email after seeing it. Emojis in subject lines can catch attention, which may increase opens at times. However, not every audience reacts the same way. Some people may find emojis fun, while others may see them as unprofessional and ignore the email. It also depends on how often you use them, because too many can feel spammy. Testing different styles helps you understand what works better. Do you think simple text or emojis grab attention more in emails?