First revolve both knees both ways clockwise then the reverse. then do a few light knee bends back and forwards with your hands on your knees for support .warm up all your joints this way .revolve hips ttoo and your ankles as you stand on one foot (close your eyes if you think your bored) .
Stand on one leg ,shake the other out to the side and make all your joints go floppy and loose as you do the shake,then do the other side.

Sitting on your legs like kids do .tops of your feet flat to the floor under your ass; knees bent and you sit on them and watch telly or do your home work. Start out lying on the floor face down and lift your body on your arms and go right back see if you can sit on your feet ,some can eventually sit in between them as they splay out and rest besides your hips.



Stretching your legs out in the splits. Stand then spread the legs and just hang your body down in the centre and go for relaxation only ,hang there until you are looser ,think loose.
Then sway around down there, very slowly! relax,hang out, and then roll around to the side and hold around one knee and hold that stretch down for about 30 sec no more at first. Do the same other side. repeat the process a few times.
Then move onto sitting splits.

Sitting in the half splits fashion (only as far as is extremly comfortable no stretch feelings). legs out on 45% in front of you at first or less if you like.
Lean down from your waist bodily and put both arms out to your knees ,ankles or around the bottom of your feet (depending on how loose you get, those are the stages) , and hold the stretch each time for around a min max less at first.
Come up and one side at a time, lean over your own leg one at a time holding that stretch for only 30 seconds at first too.
Its starts with both hands either side of the knee if your stiff and goes ,shin ,ankle and foot and around the bottom of the foot lastly .
Eventually once you can reach both hands around your foot, slide them up to the toes and lightly pull your heel off the ground (careful very lightly here and feel that new area) then you pull your self lower so your laying out flat along your leg.

The easier it gets the further out in splits fashion you can start off the routine.
Then in a few months you move your new found flexability onto the ends of your moving footwork and you will be creating angles you never dreamed of before and all with the benifits of boobing and weaving freely while on the move.
If you follow what Grey was getting at up there.