There are a lot of little quests that pop up during your first trip in Ferdok. Completing them will give you some extra gold and XP, so it's well worth it to know what's out there.
Bar Brawl - If you go to the Serene Sow after you finish up the Investigation, you'll find 2 guys fighting. You can intimidate them if you pass the check. This should net you a few extra points. If you fail, then you'll have to fight them briefly to scare them off. You can also use a few other speech tricks to get them to leave. It's up to you. It's free XP though, so swing by the Serene Sow at some point.

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Dwarf Triplets - Once you get to Ducal Citadel, you can find 3 dwarfs who look alike (more alike than dwarfs usually look - Ed). You can play their little game and pick the right one. I actually just guessed the first time. It seems like the one on the left is a definite win at least, although I think they let you win the first time regardless. The important thing is to try it again with Gladys in tow. They'll scam you after the first victory. Her default human nature is enough to call them out for cheating and get your money back. So you'll get a little money and some free XP.
The Cook - The cook in the Silver Pitcher will pay up to 4 farthings for wolf rat tails. Just step back into the kitchen area with at least one wolf rat tail in your inventory. He'll stop you and offer 2 farthings a piece. You can negotiate up to 4, but it's a little tricky. Save before you try. It's easy money, especially since we'll kill over a hundred of these things on the second trip here.
A Dwarf's Debt - You'll get a few experience points for paying off Forgrimm's debt of 4 farthings in the bar. Just talk to the innkeeper sometime after you've recruited Forgrimm.
The Recipe for the Potion of Power - This one is actually a long quest that you won't solve for awhile. You might as well get it now though. Talk to Auralia in Ducal Citadel to get the quest.