Flexibility is one of the most important things to have when you are using mindcontrol to make others do what you want. You have to be able to react to any sudden and unexpected thing said or done by the person you are trying to influence to keep the process of persuasion going.
You can achieve this kind of flexibility in mindcontrol with a lot of practice. However, there are also some smaller tricks that can help you get the desires results sooner.
You need to learn how to focus on the other person completely during a conversation. A lot of novice practitioners tend to get distracter by thinking about the goal they are trying to achieve instead of concentrating on achieving in.
By learning to clear your mind and to focus on the other person completely, you will be able to react more adequately to anything he says or does. If you do not manage to do this, you will jeopardize the progress you have achieved so far.
Learn to take responsibility of the words and actions of the person you are trying to use mindcontrol on. This will help you become a true practitioner.
Think of it this way. If you are in control, you actually make the person do one thing or another. In order to change his thoughts and actions, you have to exercise mindcontrol in a different way.
Use this mindset to come up and try different patterns and techniques for persuasion. The more of these you use the higher the chance of getting the person to do what you want.
Put your emotions on the side just like you do with your thoughts when you focus on the person you want to influence. This will help a lot for flexibility as well.