As did I in the 1970's in Ibrox!
I don't remember the cedilla bit but the rest is familiar. Under knee was another move, double birlie could only be achieved at the school shelter where we stood further back , the more usual close wall was too close!
Some times we played with just one ball but more usually with two, bouncing one as we caught the other.
Give me a couple of bouncy balls and a close wall and no doubt it'll all come flooding back.
We must have driven my mother crazy, we were on the ground floor flat so it was our wall that was best. Though the hour across the close was empty for a few years so we used that, but its door was in the middle of the wall so we didn't have the full length.
Better played in painted closes, the 'wally' tiled closes weren't as good!
Skipping rhyme was " high, low, slow, medium, dolly, rocky, hippy, Skippy, pepper, wishy" either the sang of the rope or the action taken my the skipper in the middle.
Oh dear you've made me all nostalgic
