Hello Cheng, how are you? Thank you very much for your question. Open day assessment could be tough as you may encounter hundreds of them turning up. There will be certain stages you need to be filtered through, such as documents checks, height and weight checks before you proceed to another stage. Some airlines conduct written test before selecting the candidates for the personal interview or interactive interview. This is where the biggest challenge comes in. Look at yourself in the mirror…ask yourself what are your plus points…your smile? your eyes? your looks? well…you may have all three..but do you have the personality? What i mean is….do you look approachable? To stand out you must portray an image that attracts people…your outfit…colour combination, your hairstyle, your deportment ( the way you walk, talk and stand). All this plays important roles to be outstanding in a crowd. Feel good about yourself and have the confidence…but be careful….not over confident as it will portray a snobbish character. Don’t be nervous…..you are attending an assessment or interview with human being..not being send into a lion’s den…no one is going to eat you up…..