Choose between three of the most popular stances:

• Isosceles: legs shoulder-width (1st triangle) and your arms straight out with the gun in the center (2nd triangle); recommended for beginners
• Weaver: start with the isosceles, move your non-dominant leg forward, and drop your non-dominant arm a little; gives you a more natural stance
• Chapman: start with the Weaver, straighten out your dominant arm; better for cross-dominant shooters

And when you're not actively engaging a target, you can simply drop your gun down a little into Low Ready.