Why is my rubber plant droopy and how can I help it regain its upright posture?

Your rubber plant may be droopy due to overwatering, underwatering, lack of sunlight, or root-bound conditions. To help it regain its upright posture, ensure proper watering by allowing the soil to dry out slightly between waterings, provide adequate sunlight, repot if root-bound, and prune any leggy or weak growth to encourage new growth and a more upright appearance.