It’s best to remove your shoes entirely. Your feet should rest freely on the floor without anything squeezing them – this way you will better feel the difference between tension and relaxation in your feet. If your feet get cold, you can wear warm socks instead of shoes.
Jewelry and accessories that might interfere should also be taken off. This includes watches with tight straps, bracelets, rings (if you can noticeably feel them on your fingers), ties, belts, hairpins, etc. Women are advised to let their hair down from a tight hairstyle and remove heavy hair clips – the head and neck should be as free as possible.