Often times in a lucid dream you get so excited that you take off to do something, and end up in a very unrealistic, unvivid, crazy dream that you can wake up easily from or where you end up losing lucidity :( So before you do anything, making sure to 'stabilize' the dream around you, or to stabilize your own lucidity (to make sure that you don't forget it's a dream and get caught up in it again), will usually keep you in a dream longer and with more vivid, intense experiences with a more lucid and aware frame of mind. This also REALLY helps with dream control, so when you can't get something to work you just remind yourself "it HAS to work, because I AM DREAMING, I am LUCID DREAMING, and there's no reason for it NOT to work!" :D
So to do it during the day is just practice to make sure that you associate reality checking with remembering to stabilize, so that when you DO RC in a dream and find out you are dreaming, the first thing on your mind is "I HAVE to stabilize before I rush off!"