Japanese phrase
___を交換しませんか？ ___ o kō kan shi ma se n ka
Meaning
Would you like to exchange ___?
When to use it
Politely proposes exchanging something with another person. It sounds friendly and is often used when sharing contact details.
Example dialogue
連絡先を交換しませんか？ ren raku saki o kō kan shi ma se n ka
Would you like to exchange contact information?
はい、お願いします。 ha i o nega i shi ma su
Yes, please.