How do I keep my ink from smudging when I draw?
There are four things I can think of which will help you avoid smudging your inks are: how you hold your hands over your working surface, controlling the amount of ink on your paper, helping the ink dry quicker, and being present at all times in the drawing process.


Keep away from wet areas. 

Always keep your hand above the surface of the paper, never resetting the edge of the palm on the paper. Only the tip of the pen is allowed to make contact with the paper. If you do need to stabilize your hand, for some fine detail work, you either stabilize your hand using the tip of your pinky balanced in an area free of ink or you use something like a painter's maulstick which gives you a stable surface that is balanced from the outer edges of your working area.
Remove any excess ink helps speed drying time. 

Fountain pens can place generous amounts of ink onto the surface of your paper. This pooled ink takes a long time to dry. To help the drying process you can use something called an "ink blotter". An ink blotter is a special pad of paper used to soak up excess ink from the surface of the paper. Helps to dry the remaining ink faster.
Evaporate the moisture.

Use heat to help the ink dry quicker. A heat gun, or blow dryer, passed gently over the surface of your working surface will help remove the moisture from the ink.
Stop and think. 

It's easy to get lost in a drawing and forget what areas you have recently gone over. It's those recently drawn areas which have the greatest change of being accidentally smudged. Be present in the moment, slow down your drawing and pay attention where your pen has been recently and where you want to go to next. Knowing what you have drawn and when it was drawn will help you avoid inadvertently running into still wet ink.