This one is fucking easy!
I would walk out into the busiest street wearing meager clothes. I would then throw my arms wide yell,
"I am the lord incarnate," And when every one looks at me, "Give me your faith and you shall be restored, live a life free of sin to enter my fathers kingdom. I am the son, and i am the lamb. Come confess your sins to me and be absolved of sin"
Then i would hear peoples confessions, deeming each man woman and child a sinner and destined to the gates of hell. Then as shit starts to swing for the fences, and reality begins to break, i mount the highest point and scream,
"Father forgive not these sinners, they heed not your word. Bring forth the lake of fire to cleanse their spirit." and while people weep and cry for they are destined to die and serve eternity in hell i shall scream "SHOW ME DEM TITTIES!" and jump from my perch falling with the precise time that the world ends.