Movement is quick and easy
Each character has a speed based on squares. One 1 inch sqaure eqauls one five foot square in the game world. When you take a move aqction you can move up to the indicated number of sqaures. Moving from one sqaure to another, even diagonally uses 1 sqaure of speed. Sometimes terrain? will slow you down costing you more than 1 sqaure of speed - this is called difficult terrain.Moving away from an enemy adjacent to you usually provokes and opportunity attack. However you can also use a move action to shift. this lets you move one square without suffering an opportunity attack from adjacent enemies.
TIP: If you need to get somewhere fast you can run as a move action. this gives you a +2 speed for your move, but you grant any attackers combat advantage until the beginning of your next turn.