That means there are Bitcoin ATMs in your area. Yes, using LocalBitcoins you can even exchange that Starbucks gift card from Christmas a few years ago for bitcoins ;. This will send a PIN code to your phone that you need to confirm. Should I leave my bitcoins on the exchange after I buy? All you need to do is set up a transfer from your account into theirs. We can both agree on this: Buying bitcoins with cash is confusing! The app is very user-friendly and allows one to trade Bitcoins on the go!