Performing the: A Step-by-Step Tutorial Triangle Pose Trikonasana
Turn your right foot out 90 degrees, so your toes are pointing to the top of the mat, and pivot your left foot slightly inwards around 45 degrees.
Extend your arms out to the sides, so they're parallel to the floor, then reach your right hand forward directly over your right leg, bending from the hip and not the waist.
Lower your right hand down, either resting it on your shin or ankle, or if you can reach, the floor. Extend your left arm straight up towards the ceiling, keeping your arms in one straight line.
Look up towards your left hand, hold for a few breaths, then rise back up to standing and repeat on the other side.