It is important to maintain a good sitting posture while practicing, which will enable the student to play the guitar equally effectively even while standing up. It is essential to use a guitar strap while practicing the guitar in a sitting posture – the length of the guitar strap, the resting of the guitar & the angle of your hands play a key role. If the sitting posture discipline is maintained accurately, the student should have no trouble in switching to a standing position & playing with equal ease.