Good preparation, meditative breathing, understanding your personal triggers, all good ways to work towards easing the nervousness and conquering the sweat.
My first piece of advice is to practice, practice, practice interviewing with different people. The more you practice the less nervous you will be when it comes to the read deal.
Break the ice about it if necessary. Let the interviewer know you are excited and are feeling a bit nervous. Though it isn't always an interviewer's philosophy to put you at ease, most of them want to get to know you and what you're capable of. Show 'em what your made of and work towards finding your equilibrium in the interview. You'll go from sweaty to hired in no time!
Remember that before a recruiter offers an interview, they've seen your resume and believe you have the education and experience to meet the job requirements. Rather than trying to quiz candidates during an interview, recruiters ask questions because they simply want to know more of your story. The good news is, you are an expert at knowing yourself - so relax, breathe and allow the recruiter to get to know you!
I take a deep breath and then start, sometimes that collective deep breath helps me calm down and from there I can talk almost stutter free. Practicing too much before your interview could heighten your nerves, as you interview more, your nerves will subside and you will learn how to overcome your stutter.
Something else I would recommend would be going online and researching the particular topic you're presenting and seeing if there are any questions on the topic. Reviewing what others have asked and gathering answers will make you more knowledgeable on these topics. If you are concerned with stammering and mixing your words during an interview, I would suggest going online to find popular interview questions. You can also check out Glassdoor, they sometimes provide interview questions for particular companies. What I have found to be the most effective trait to use going into interviews is confidence. Remember, no one knows you better than you; and the interview is based on you! It's always easier to be comfortable when you're the subject matter expert. You have the answers they're looking for, take a deep breath if you get into a pinch, and then put your best response forward.
Prepare everything ahead of time to avoid last minute distractions. Copies of resumes, clothes, directions should all be done prior to the interview day. These small distractions can frazzle anyone on the day of the interview
Remember that your interviewer is human too, so be yourself & take your time answering questions. Take deep breaths & don't drink too much coffee!
Overall, try to take a deep breath, remember that the interviewer is human too! Ultimately their goal is not to make you nervous but to get to know you and the professional experience you bring to the table and how that could translate to added value on their team.
Fidgeting - make yourself comfortable in the beginning, but try to maintain good posture and gestures. Take deep breaths - it's your interview.
I find that when candidates are nervous they have a tendency to speak at a very fast pace. In addition, I find that nervous candidates also don't take the time to pause and think about the question…many launch right into an answer without much thought or reflection and then go on and on with their answer trying to find their point.
Practice, practice, practice! As uncomfortable as it can be to play “mock interview” with a friend, family member, or colleague, it’s really the best way to get over the jitters.