Some easy steps..you can follow this site
http://www.wikihow.com/Hatch-Chicken-Egg...
http://www.backyardchickens.com/a/how-to...
Did you try to do a search on Google?
Hello! I am hatching chicken eggs for the very first time. I have been incubating them in the HovaBator and am now on day 20. I have candled them a total of three times (On days 4, 10, and 18) and all but two of the eggs had a fully grown chick in the egg on day 18. None of the eggs have started pipping, rocking, or chirping. I am concerned that I do not have enough humidity. And as many would say to check the hydrometer, I do not have one! Again, this is my first time and I did not think everything through. For the first 18 days, I added 1 cup of water 2 times a week. And on the 18th day, I added 2 cups of water for Lockdown. Does that sound like enough water? Should I add more? If so, how much? And is it normal for the chicks to not be pipping yet?