One of the best flight attendant interview tips here is to know what you good at and to honestly identify where you need to learn a new skill and do something about it. You might need to learn new or better communication skills or have more confidence in front of people, or you might have grown up in the country like me and have poor taste in grooming, again like me.
In my defence I think I always tried with what I had but looking back on my first interview photos I have to admit my grooming was ordinary to say the least and I think I was pretty lucky to get my first flight attendant job to be totally honest! If I was to be a little less harsh on myself I could say that my grooming was not what it should have been so I really had to blitz ´em with my other qualities!