The method or criteria for choosing something; 'how to choose' (e.g., how to pick a product, service, or person).
ワインの選び方を教えてください。
Please teach me how to choose wine.
サイズの選び方を間違えると服が合わなくなる。
If you choose the wrong size, the clothes won't fit.
就職先の選び方は人それぞれだ。
How to choose a workplace varies from person to person.