You answer:

Hello, I'm doing well, how are you? Cryptocurrency is a great currency, I like it. I bought it for the first time thanks to the app https://play.google.com/store/apps/details?id=com.xgo.wallet&hl=en-us&gl=us . Purchase, sale of more than 170 types of cryptocurrencies. Works smoothly, honestly, you can invite friends. If you want to do something better you won't find it.