For one I roared at a chicken.
To the uninitiated, chicken roaring is a highly entertaining action that will certainly um garner attention and loathing from certain members of the public; for instance, the chicken and that insignificant foreign worker on the street who looked away and stopped staring when I glanced in his direction. Should the glance fail to deter any such insignificant starers, do proceed to roar at them as well.
Roaring is well, roaring. How else do you describe it really? You open your damned mouth and you go "rawwrrrr" murderously at the roaree. The roaree in this case being the chicken. If there are no chickens available, um roar at your friends for practice, they will surely be amazed when you finally chance upon the opportunity to display your full techniques on an actual chicken. To the non-compliant, you may wish to advise them to squawk, cluck and flap their arms and waddle about like an actual chicken, everyone else should already know to do this.
I assure you, it is highly intimidating. The chicken seemed to think so, at least with it's occasional nervous glances over it's back when I began roaring, and the rest of it's chicken brethren began to similarly move away from me.
For the bucket lists of those who truly live their lives to the fullest : Chicken roaring.