Having made a decision, we need to check that we carry it out as intended. In other words we need to monitor our own behaviour. ‘Checking’ considers the following questions: How does being aware of our intentions influence our actions? How can we learn from our mistakes when we perform tasks that are difficult? How is it that human beings are able to infer the intentions of others? Various cognitive neuroscience studies show that we are aware of what we intend to do and so we can then compare it to what we actually do. We are also aware of our own mental states and have the ability to infer the mental states of others.