Hugs. You get hugs from your biggest fan while you work those quadriceps and buttocks. Because it’s a unilateral exercise (one that works one side of your body at a time), it helps fine-tune weaker muscles for better stability and balance. Target each side independently to “even out” asymmetry. You can modify baby lunges into a walking lunge, or just lunge-in-place. Do some of them with him facing you so he can laugh at the funny faces you make with each lunge, and do some with him facing out so he can check out his world.
Choose which position is best for your baby: facing you or facing out. Hug him close to your chest and stand tall, looking straight ahead. Take a wide step forward (now is NOT the time for baby steps) with your right leg and position both knees with a 90 degree bend. Focus on your front knee, keeping it over your ankle while your back knee heads to the floor, heel lifted. Switch focus to your back leg, push off and step your feet together. Now, repeat the motion with the opposite leg.