Also known as relaxing. Being tense can put the whole date on edge. It can also make your smile and attempts at humor come off as phony, so calm down. You are out with this person because they WANTED to go out with you and WANTED to have a good time. 

And speaking of humor.  If you don’t know any jokes or are not in the habit of making humorous comments you and your date are in for a long evening.  No one wants to be around a stick in the mud. Sharing some laughs with your date  can work absolute wonders. 

Do not approach your date like world peace hangs in the balance so take that heavy load off your back and enjoy.