How Do I Get Her Password?
Ask her for it. That's the only way to get it.
If you are trying to sneak around and get it behind her back without her knowing, then I would suggest considering if this is a relationship that you really even want to be in. If you're trying to spy on her like that, that's not exactly the sign of a stable or mature relationship.
Easy. Key logger. But why would you need to anyways? If she wanted you to have it, then she'd tell you. Otherwise, you obtaining her password by any other means is illegal.
Brother is not easy first of all my space is brand name in the market if your talk about social channels so please don't ask such kind of stupid questions over here
You can get it illegally only if she uses your PC or you download key logger into her PC, but asking her for it is a real STUPID thing to do..