lisalisa. I have recently been for a number of interviews and start a new job on Monday.
I borrowed some very good books from the library and did a lot of swotting up on what I thought the interviewer was likely to ask and had planned examples of situations that I'd been involved in. For example, you say you are warm, friendly and outgoing but is this a key attribute for the position you're going for. Do you need to show that you are fair but tough when you need to be? Is resilience a key attribute that you need? Think about all the core competencies and traits that you would expect someone to have and then apply these to specific work situations you've been in and have those written down as pointers. It may help to have 2 or 3 specific situations in mind that you can keep referring back to. For example, when you've been faced with unfair criticism. How you dealt with it and turned it around.
If you are with a good recruitment agency, ask them if they would be willing to put you in a mock interview situation and then give you constructive criticism after.
It's important to be yourself in the interview but you need to have something that shows the interviewer you have that extra "spark" he/she is looking for.