[video=youtube;nfxHrcpTbOU]http://www.youtube.com/watch?v=nfxHrcpTbOU&feature=fvwrel[/video]
Find a nice branch, cut it. Then make a 45 degree cut with a clean razor and cut the stem, dip it in root hormone, put the cutting in a medium (jiffy, rockwool, etc), keep in a propagation unit, spray the plant 3 times a day to make sure it is moist. This video shows how to do it with a hydro system, you can do it without hydro, it'll just take a little longer. so in 7-14 days you will have clones.