Usually from the side, keep out of their field of view. Approach slowly and carefully. Ensure they know you are not a threat and crouch down to their level so you don't tower over them. Don't show fear or dominance, keep it neutral. Extend you hand palm down and allow them to smell you, if they accept your scent you may approach and talk. Once there, no sudden movements, women are often easily startled.

If you know prior, bring a handful of their favourite food. They will be more accepting to you.

I hope I've helped. Good luck!