Get the hang of it

To learn how to do something properly or to understand how something works through practice and experience. It implies developing skill or comprehension that initially seemed difficult or confusing.

This phrase originated in mid-19th century America, likely from the idea of learning the proper way to hang or suspend something, which requires understanding balance and technique. 'Hang' comes from Old English 'hangian,' and the phrase evolved to mean grasping the knack or technique of any skill, not just physical hanging.