If you want to try a forward stance, which is with both feet cocked toward the nose as opposed to cocked toward their respective tips, you will take up a naturally aggressive stance that makes it easy to twist into turns. Otherwise just remember to relax your ankles, there isn't any point in fighting your boot, its going to win every time. Keep your lower body movements limited to your hips and knees, that should take the strain off your feet.
Edit; While we're on the subject, if you've just started riding, you might just want to keep your shoulders in line with the board until you've mastered the basics. Which is to say that if you drew a line through your shoulders, it would parallel to the length of your board. Keeping your upper body quiet simplifies learning, which lets you focus on the lower body more. While twisting can add a lot of power to your carves, the technique you will want to use will vary with your gear, style, and terrain, so make sure you read up before you go off learning bad habits.
Last edited by Eat Sleep Shred; 01-18-2014 at 03:42 AM.