Start with Tree Pose (tadasana). Remember to do both legs, and never ever put your foot against the side of your knee.
You don’t want any lateral pressure on your knee; you can damage ligaments that way. If you can’t get your foot fully on your thigh, that’s fine; put it on your calf or even keep your toes on the mat and place your heel lightly against the other ankle.
Hold for 5 to 10 breaths.
Change it to Dancer Pose (Natarajasana).
Grab the inside of your right shin (or ankle) with your right hand, raise your right leg as high as you can behind you while continuing to hold your shin with your right hand.
Keep your left arm up to counterbalance your body. (If you can’t reach your foot with your hand, then feel free to use a strap).
Hold for 3 to 5 breaths.
Now slowly transition to Eagle Pose (Garudasana). Stand up into mountain pose (Tadasana), bend your knees a little, then lift your right leg and cross it over your left leg.
Maintain all the weight in your left leg and foot. If you can, hook your right foot around your left calf and down a little. Take a breath and, while you inhale, stretch both arms in front of you, cross your left arm up into your right arm, raise your forearms vertically.
Hold for 4 to 8 breaths then repeat for the left side.