What do you say if a boy asks you what you are going to do to him when you next see himwhat do you say?

You could playfully respond with something lighthearted, like, "You'll just have to wait and see!" This keeps the conversation fun and intriguing without giving too much away. Alternatively, you could say, "I have a few surprises in mind, but I promise it'll be fun!" This adds a hint of mystery while keeping the tone upbeat.