Even if you don't quite know how to express your feelings to someone today, any kind of communication is going to be good communication. Get a conversation started -- that's all that really matters. Don't worry that you're not being clever enough, articulate enough or serious enough. The tone of your discussions will be organic -- it will evolve in whatever way it needs to evolve. If you think too far ahead, you will keep yourself from speaking. And that is counterproductive.