OK, since you are still reading, at least do NOT think about a green elephant, and remember that there is no pink ball under your chair.
So, what am I really not saying here? Let's not think of an example: you are on your first date with someone you really like, and you really don't want to say something stupid, or do something awkward. And you don't necessarily keep imagining what you don't want to do over and over again, until your mind gets trained so well that when you get there, you actually DON'T DO IT!
I don't think I'm making you imagine all these weird things. It's not the way your mind works. And I'm not saying that next time you don't want to avoid not thinking about something, that you shouldn't say to yourself not to think about it.
Instead, imagine what you want. The space under your chair is empty. On your first date you'll be relaxed and friendly, and everything will just flow. Be yourself, and treat your mind well.
Oh well... I don't think it makes any sense anyway. You won't notice in the future when you are not thinking in "donts" anyway, so don't use my advice. In fact, avoid not thinking in negatives.
And don't take it seriously... :-)
