It sounds like your boyfriend might be teasing you or hinting at something playful or flirtatious. His message seems to suggest that he believes something exciting or unexpected is going to happen soon that will elicit a stronger reaction than just laughing.
You could respond in a playful way to match his tone. Here are a few suggestions:
- "Oh really? I’m intrigued! What do you have in mind? 😏"
- "You always know how to keep me on my toes! What are you planning? 😊"
- "Is that a challenge? I’m ready for whatever you’ve got! 😄"
Choose a response that feels right for your relationship and your style of communication!