Bliss Jericho said:
i don't think this is off the thread topic, but don't answer me if it is, please. but what are these things? how do they work?
Impact play is a pretty broad term which basically means that the central form of sensation is one person being struck by something, whether it be a paddle, whip, flogger, etc.
Knife play and fire play are pretty self explanatory. The former uses blades as a form of stimulation, whether it be to cut off clothes, scratch the skin, or just have your partner feel the coldness of it. Fire play is, well, using fire for physical stimulation; the idea is to transfer the feel of the heat to someone's body without burning them.
Fear play is the use of fear to create stimulation or arousal. It might involve doing a particularly edgy role-play scene, for example. Or play on a fear of abandonment, or something to that extent. It's considered a form of edge-play, probably the edgiest, in my personal opinion.
how would you use them to make a better experience?
Not completely sure I understand the question.
where would you see it to find out if it's something you might like?
You can always just type the terms into google, at least some of the stuff you get will actually be decent educational material. Also, you can see what your local fetish club scene is like, and see if there's any performances you can watch. Fear play's not exactly something you can watch, really. If you think you may have an interest in it, I'd advise going slowly, and only proceeding with someone you've played with before, and trust implicitly.
Anything else you want to know, just ask me.