• press triangle to wallride
  
• press and hold X and L1, R1 at the same time
  
• release L1, R1 and keep holding X to stay on the wall
  
• release X shortly after to wallie/wallieplant
  
• quickly press a directional arrow and a flip/grab trick at the same time
  
• then press triangle to wallride again

Note - It may be easier to learn the kfws with either left or right square first, before trying other directional buttons. Not all tricks can be used with the wallshuffle, but a lot of flip and grab tricks will work.