Answer: Body language and clothing affect a job interview very much. If your body language is serious, they might think you're mean and serious for everything. They might not want you if they think like that. If your body language is too loose (funny, not caring) they might think you don't take the job serious and will play on duty. Clothing affects an job interview because if you're wearing clothes with holes, they might think you will be wearing that everyday and that's very unprofessional. If you're wearing clothes that is very appealing, people might be distracted by the clothes and not on what you're talking about.