回答问题时看着他们的眼睛，多说点"Yes I can do that. My knowledge, experience, and hardwork will definitely be of great addition to the company. I'm really looking forward to contributing to the company. etc etc"。 如果他们问你专业问题，just smile,think for a few seconds, and try to answer. 不要看上去很害怕的样子，最好对自己说 "是公司想要你，不是你想要公司"

good luck!

and make sure you sit up straight in the chair, don't slouch, and rest your arms comfortably. body language is also very indicative of how confident you are.