You start to test your new powers

After regaining your breath you decide its time to see just what you can do as a ghost. Walking onto a crowded street, you think to yourself "Can I interact with them?"

You walk straight towards a guy like a game of ckicken seeing what could happen. He walks straight through you but the sensation knocks you to the ground and you get a sudden rush of what just happened. You attempt to trip somebody up with no success several times, finally after huge amounts of concentration you succeed.

"I wonder what else I can do..."