He gets bored easily, so at first you may only be able to look past him, but in that brief glimpse there lies an eternity of possibilities. Eventually, with practice, he will get more used to your doing this and begin to lose interest even in you getting by him, he will no longer, in his own perception, see it as a threat. You will pass by him into a new and undiscovered country. Discussion of just how to trap your attention would have to be keyed to the individual since we all structure our perception differently. We can only speak in generalities here.
Some people use drumming, some use other forms of music, some use physical activities.
All of these are valid, but the make up of your particular perceptional biases makes it a highly individual endeavor. This filtering back through the temporal window of reason creates our biggest problem. The first shift in perception created by these methods is generally confusing, or may even be blocked out by reason entirely. As our world view grows, however, the nature of what we are perceiving becomes, or seems to become, clearer to us. Now is the true danger point, reason will step back in and tell you that you have perceived this or that, it will seem amazingly clear to you, it will not, however, necessarily be correct.