Lol don't be nervous, my last interview was a complete breeze. Just speak up, be honest, and say Yes sir/Ma'm or No sir/ma'm. Also make sure you dress nice, because like my grandma always said "first impressions are everythin."
Good luck Kim! I havent interviewed in....I don't even remember how long Try to stay calm, wear something that your comfortable in but looks nice and doesn't show sweat. Don't be afraid to SELL yourself. Make sure you let them know what an asset you will be to their company. Make good eye contact is important too.