Hello,

First of all enter inside the office after taking permission. Enter with little smile on your face. Then don't sit until and unless the recruiters or employers tells you to sit. After that, if they ask any question then try to answer the question without getting nervous and without any hesitation. Do shake your legs while having the conversation with the recruiters.

Don't keep the your hands on your front table or desk, it will create bad impression on the recruiters and you might discomfort them with your behaviour. Stay calm during the whole interview round, don't speak loudly while answering nor speak slowly.

Don't be serious all the time, always put a little smile on your face. Keep maintaining eye contact with the recruiters, don't maintain eye contact only with one recruiter but maintain it with everyone present in the interview room. In the end, say Thank You to all the recruiters. Remember, if you don't know the answer then just say I don't know or say I don't have any idea about it.