Checking run

I saw Arjen Robben do this really well. This helps the winger lose the defender and gives the guy more space. If I have more space I can turn and face the defender and take him 1 on 1, or I can pass forward and move the play. If I don't turn and face their goal, I am useless, because I am not helping the team build play. 

To be more offensive and build play more often. You have to turn and take the defender on, taking him on is easier than trying to play one two's and getting past him. If you turn and face the goal you have a better chance at doing anything. 

You can also us it in reverse, drop down and drag the defender than sprint in the space left ahead of him. The idea is to basically move the defender according to your convenience.

That's it