Once you have left the interview start thinking about all the positives and any negatives. It is good to talk to your consultant as soon as possible as these thoughts can be discussed and feedback passed on to the employer.
If you are made an offer then you need to be able to make a decision fairly quickly so that the contract can be sent out to you. We advise that you receive this in writing and you are happy with it before you hand in your notice.
You may find that when you hand in your notice that your current employer does not accept your resignation and offers you more money to stay. In this case you have to ask why you intended leaving in the first place! If it was for extra money then do accept it, but also think about the consequences.
If you are not offered the position then do not worry. Draw on this experience and look at all the positives from the interview. Keep on persevering and soon the right job will be yours.