Like in the Topic said.
How would u guys explain Bitcoin to your Girlfriend!
cheers
Buy something for her, and the she will know if bitcoin worth. And then she will ask you, "How to get bitcoin?"
Girls like to use watspp, just tell her bitcoin is similar to whasapp then she will start to grow interest to it
Of course I do not see any connection between your bitcoin and example applications, because they are two different things. But the girl is pleasant that she bought something, but not for what you have done.