make sure you have lots of examples to talk about in the aspects of pre event, event day and post event delivery include post event assessment and the objectives of holding the event in the first place, talk about working with internal and external stakeholders, suppliers and members of your team. If you manage a team yo u need to reference management style and task delegation. Nowadays you'll need to show how media savvy you are so include examples around how social media has helped meet your kpi's. If you have any examples of event related print materials you have played a key part in producing bring them along and talk through the process of how you got to the end product. Break down the event planning process and be prepared to discuss and have examples for all elements. Good luck!
I agree - for me an interview is often won or lost in your preparation. I mentally rehearse interviews over and over in my head, imagining every possible question they may throw at me and thinking what I would say. And very importantly, these fantasy interviews always go well - this sets a pattern of expectation for your brain and you will be much more relaxed on the day. Personally I enjoy job interviews (an hour to talk about me? What's not to like?!) and I think this helps as it eradicates nerves.
I particularly like the idea of preparing for that good old strengths and weaknesses question as it's usually the one that gets me.
If you've had a bit of bad luck at interviews lately, it may be a good idea to tape yourself replying to interview questions and watching the film back to see if you can spot anywhere you can improve. Also, you may want to have a look at your body language: www.totaljobs.com/careers-advice/interviews/body-language
This is a general interview tip but could be helpful...Think about how you're going to answer questions as well as the content. Use a structure to keep you right like STAR (Situation - a brief bit of background; Task - what needed done / what your objective was; Action - what you did (don't use "we"); Result - what was achieved). This is particularly useful in "give us an example of when you've...." type questions.
It can stop you waffling and act as a reminder about what you want to share.