I've heard this a number of times now, but what is "playing like an away team"?
Mainly just counter-attacking, like we did against Dortmund is one example. If we let Swansea have more possession and get high up the pitch, their own players would have been so confused when we broke on them fast. Their whole game plan is based upon us having the ball and breaking them down. If our game plan isn't based on having more of the ball and breaking them down then it at least messes up the game plan they successfully worked on all week.