Mainly for LDing you need:

1) Prospective memory( MILD): It's your precious mental alarm clock that notifies you of your intention to become lucid while in a dream. Train it, nourish it, fix it on the intentions to become lucid, it it will build with time to become a very effective inducer.

2) Critical Mind: You should be able to see the world more critically: You should always know that you might be dreaming, even right now, no matter how real everything seems. If you've had a few LDs, you'll know what I'm talking about. Without this, it's hard to become lucid since believing this is a dream will be unlikely, even if the intention comes.

Of course RCs is the way to go, and adopt the mindset that anytime you might actually find out you're actually inside a dream. Any RC would work, just do it sincierly, but don't do it more than you'd be comfortable doing. No need for a rush, we are altering a mindset after all, and it shouldn't be annoying.

3) Dream Recall: Right your dreams down, every detail you can remember. The more, the stronger your memory will be. A stronger recall means more detailed and life like, vivid dreams for you, since you wake up with their memory, like any other experience in life.

4) DAT placebo effect: You know dream control is believing you can do it. You can stay lucid, increase vividness and details, and control stuff if you believe you can, cuz dreams work with your expectations.

There are lots of neat tricks to start with until you've reached a strong ability to believe easily, like:
_Imagine your in a holodeck, or a videogame you can control, or whatever...
_Assign yourself a private dream guide. This DC will be like your assistant, or like that 2nd in charge whatever that you command if your an officer (?)... you get it. Just you say, and the DG does (of course since this DC is assigned as your DG, then you expect him/her to do what you say. This is why this is effective. This is almost the same as the first tip.
_Well, anything else you can imagine that makes it easier to believe..be creative.

5) Self awareness: I'm not very good at grasping this. What does it mean to be aware of your self? Being mindful means being able to 'see', 'track', 'be aware of', etc what's going on in your perspective. It means being able to see your reactions, and not just be drifted away with them. I hope you understand what I mean by "see your reactions". Just Google "being mindful", I do urge you to study this. Also learn how to train it, of course. It's usually through meditation, a certain type I think.. I suck at explaining this, but glad I don't need to, you can google it. Lots of stuff about it, it's not just a LDing thing.
Of course, mindfulness is very useful for LDing.

It's also known that training self awareness means being more aware of your existence, existence in the now as a unique separate individual with your own impact and effects. I've tried to understand and study why this works, but as I said, I'm bad at it. You're supposed to be more prone to realizing that the dream world you're in is your own creation if you're more self aware. I fail to see the relation though, since even waking life is a reality that exists within us, in our brains, only differs from dreams cuz it builds the world using the map from stimuli, not the map from memory/creativity. But, I'm no scientist, so may well be just speculating the ice without looking at the more precise science behind it.

(Anyone can link a scientific article(s) about this? Or is it like a vast subject in itself requiring more than just a few articles?(maybe a book?)))

All in all, prospective memory is the main tool. Practice recall and control and you'll be a master if you commit (since MILD proved it's power in creating expertise numerous times). Don't forget to train your prospective memory and critical mind, and heads up: take it easy; don't frustrate, expect too much(it takes time), and most importantly, DON'T count your LD rate as progress, because you're always getting better, even if your rate is terrible (since prospective memory,recall and critical thinking are like muscles, every minute of training improves them). Don't frustrate, it you'll burn your fuses, trust me!

LDing 4 Eva!! ÒwÓ