Well, one (obviously) gets lucid during a DILD by realizing they are dreaming, correct? You have to find a way to make yourself realize you are dreaming. The common way to do this is by using reality checks. That is one way to do a DILD. Another way is through hypnosis or MILD (see tutorials). You can learn to recognize dream signs in your dream. There are endless ways to become lucid in a dream, you just have to find the best way for you. Ultimately, you just have to believe you can do it. Good luck.