One way to build up play

 This is one the simplest ways to build up play from the sideline. 

So basically the full back or midfielder plays the ball to the winger who's on the line. The winger receives it and takes a touch forward and dribbles inside a bit. The full continues his run after passing and goes to the outside and runs along the line to support the winger. When the winger lures the defender inside it creates space for the full back to receive in space. The winger then plays the ball to the full back allowing him to take a touch beyond the defender and dribble in or put in a cross into the box. 

This is one of the simplest yet most effective plays to build from the back. One more thing is that the full back has to make sure he's in line with the ball or last defender to avoid being offside and spoil the whole move. 

That's it