The rogue would start carousing with the locals, making friends and generally having a good time.
The wizard would get a room, put a "No Disturbance (under pain of transmogrification)" sign on it, then mutter insane gibberish while preparing spells.
What the paladin does depends on which god he believes in...
[sblock]ASMODEUS:
* Declare your authority and gather taxes.
* Get high and write a screed on authoritarianism.
AVANDRA:
* Set up a casino.
* Get high and shave your head.
BAHAMUT:
* Look for a criminal to execute.
* Get high and convince someone to inform on their neighbours.
BANE:
* Preach about the benefits of going to war with another community.
* Get high and perform martial practice routines to the point of exhaustion.
CORELLON:
* Hold a formal ball or pageant, ranking the guests by their beauty.
* Get high and create something beautiful.
ERATHIS:
* Hold a court of law, enforcing sumptuary laws.
* Get high and meditate over a legal document.
GRUUMSH:
* Hold brutal gladiatorial contests where the weak are scorned and the strong are given the glory they deserve.
* Get high and violently destroy something for the sake of destruction.
IOUN:
* Give advice to those who are unsure how to approach a problem in their lives.
* Get high and keep an exact diary of all your deeds, hiding nothing.
KORD:
* Hold a gladiatorial contest.
* Get high and work your body to exhaustion.
LOLTH:
* Preach against elves and eladrin.
* Get high and spend dawn to dusk in a room devoid of light.
MELORA:
* Hold a formal ceremony when livestock is slaughtered, lying motionless for hours in an imitation of death while others eat and drink.
* Get high and tend to a wounded plant or animal.
MORADIN:
* Depict the image of the recently deceased in stone, inscribing everyone's memories of that person into the stone for all time.
* Get high and weigh yourself down under hundreds of pounds of stone.
PELOR:
* Hold a communal prayer where everyone declares their fears and you give them reasons for hope.
* Get high and gorge yourself on food.
THE RAVEN QUEEN:
* Prepare a sumptuous feast before the congregation and beat anyone who tastes of it.
* Get high and meditate upon your fate and why you should not fight it.
SEHANINE:
* Hold a masquerade ball during one of the four phases of the moon.
* Get high and dance naked under the moon.
THARIZDUN:
* Advise those who are overwhelmed by their hardships that suicide is the easiest way to peace.
* Get high and wail the name Tharizdun for six hours in the dark of night.
TIAMAT:
* Give someone financial advice, specifically how to increase their wealth.
* Get high and count a hoard of coins.
TOROG:
* Perform a rite of passage or initiation, using physical torment to force the subject to gain a new level of consciousness.
* Get high and perform six hours of self-flagellation.
VECNA:
* Hear secrets and confessions, swearing blood oaths that neither will speak on it ever again.
* Get high and list all your secrets on a scrap of parchment, then consume it.
ZEHIR:
* Preach the benefits of mind-altering substances and the path of excess.
* Drink poison and fall into a coma for six hours.[/sblock]