some time ago where I showed two of my classmates my bitcoin wallet then the amount inside it as well as its price in my local currency and as usual they get curious too and asked how is it considered as a money or how it can used to buy stuffs.
You may show them videos of bitcoin how it works so they will understand. Also I always shares news about bitcoin and my friends got interested how I earn daily in bitcoin. So I show them anything about bitcoin like videos and they understands it.