Hey there Tradl3s.

MILD is the technique I've used for months, and it's really up to you when it comes to the mantras. You need to find words that bring meaning to you and remind you to be in a certain mindset. Some common ones people use are "I'm dreaming", which isn't too bad. As long as you really believe in what you're saying, then it can carry over into your dream and indeed remind you. A mantra I often use is "pay attention!", note that there is an exclamation point. I find that my mantras are much more successful if I add some emotion to it, as it somehow induces that "you HAVE to do this!" mindset once I'm dreaming, if that makes sense. I personally like using mantras in the form of commands, since they attract my attention more.

But yeah, try to keep it concise. You can do something like: "When I open my eyes, I'm in a dream." or simply "Reality check now."

Good luck!