Do not lean forward too far - it is natural to lean forward somewhat when going uphill but try to minimize this tendency, thus avoiding forward flexion. Actively use the legs more to push up the hill.
Upon stepping up onto a step, actively push body up with the muscles of that leg. Everyone tends to favor one leg over the other so make sure to practice the pushing up with each leg. Keep upper body lengthened, chest up, as you go up the steps. Avoid going down steps sideways if possible. Practice descending the stairs leading with different legs each time.
Pole Walking & Urban Trekking
In general, poles promote a more upright posture and weight bearing on the upper extremities, afford some relief of weight bearing on the lower extremities and also-because of the active use of the arms-increase the cardiac effort.
In general, a walking pole with the following features is going to be safer for someone who has balance issues, a previous/current fracture, previous falls or a high fracture: