Height: What are some ways to appear taller?
What can a man do or wear to look taller?
Later in life you won't grow taller, but if you get in the gym, start being active and focus on standing up straight and tall you can fully express your height. Note: you don't have to lift weights or train to have good posture, though it helps to have a strong core and strong back muscles
There's no special exercise you need to do (back exercises can help like Straight Leg Dead Lifts) but it's more a focus on being active and standing tall.