15 Body Language Mistakes You Should Refrain from Doing
13. Irregular Movement of the Legs

Swinging, crossing, fidgeting, or playing with your legs can be clear signs of being nervous. It’s not uncommon to find interviewees playing with their legs under to table, but it can be a little distracting to the interviewer. Try and keep your legs as still as possible; that way you’ll look like you’re in full control of the situation.