Usually a pattern says on it which increase they want. Her patterns can be a little hard to figure out though. I have a couple of the videos and she usually use the "backward loop" method of increases. Go the video tab at the top of the page and check out the increases. You can see it there along with others.
BTW.. there is no rule you have to use one increase. If you find one easier go for it. I change them to suit my needs all the time.