In some places, folding, writing on, or even putting a business card in your back pocket can be incredibly rude.
You wouldn’t want to sit on your business colleague, would you? Then no matter the culture, treat their business card as an extension of the person.
After a card is handed to you, take it with two hands and place it front of you before putting away.
This demonstrates that you took the time to consider your peer or colleague.
Cool Beans Coaching