As a parent, you need to trust your baby when it comes to learning. With time your toddler would understand instructions without the use of hand gestures. This is a positive sign which indicates that your baby is now able to catch words and follow them accordingly. You can practice simple instructions such as stand, walk, eat etc., on a regular basis without your little prince.
What you need to know
As your baby crosses this stage, you can slowly drop the use of hand gestures while guiding certain instructions. Be patient and allow your baby to enhance his mental capabilities to learn voice commands. Always maintain a soft voice while instructing as it will keep your toddler motivated. Practice one instruction per day and see how he responds.