According To H.T. part 3

You are now in the saddle. Yesterday we got in the saddle today after placing both feet in the stirrups...sit still for a few seconds and then dismount. We want the horse to be comfortable with this before we ask him to move on. Now, we don't want to make any sudden moves, but at this time we want to ask the horse to start flexing his head to one side. We have been working with the horse doing this on the ground, so if we have done our homework right, this is what he will do from the saddle. Try this by putting your arm in a straight position to the left or right. If you have his head turned to the right ask him to step over by putting pressure on his right side. This will start his feet moving. Cluck at the same time. Remember, you have to get his feet moving. If he takes a few steps you are on the right track. The secret that I have found in getting a horse to do something is not to get him excited. You can also praise him when he does what you ask. Before you put him up for the day, I like to walk him around for about 3 to 5 minutes then dismount and put him up for the day. Tomorrow when you start your horse again, be sure to do the ground work with him first before you get in the saddle.