You do realize that you've skipped about 70 steps, right? OP needs to figure out what currency the recipient wants, pick a wallet app (most of the ones people recommend are god-awful), install it, create a wallet, figure out how to store keys for the wallet safely (which is really not possible), figure out how to add funds to the wallet in the right currency, pay attention to the transaction to make sure the right amount of funds are being transacted... and each of those steps has a dozen substeps, and requires research in an industry that is constantly lying to people.
... plus, OP did not say that there was a QR code involved at all, that's a very odd assumption on your part.