Well, you don't need an experienced Wii owner to answer that, it's a simple question. :3
Of course... I'm stupid. Also, I haven't played my Wii for about six months.
I know there's a way, I just forgot how you do it.
For now, I'll just tell you something you can do until someone comes and gives you a real answer to your question.
Just pop out one of the batteries in the Wii Remote, put it back in and don't press any buttons.
Kind of a pain in the ass, maybe, but I'm just suggesting it if you need a fast solution.