BDSM Couple needs advices

So, i'm already a few years in this kind of bdsm online scene. I noticed, that my girlfriend likes some bdsm things like getting choked, praised, getting her hands tied and to be unable to see. Till yet i dont have any real life experience with bdsm, so, what are some light bdsm things that i can do to her to tease her, to make it more enjoyable and a hotter time for us?