I wish to make a simple twisted bangle. Does anyone know how to twist the wire before soldering?

Yes - you can take your wire and insert the ends into a dremel or a vise and then hold the other end and slowly crank - SLOWLY - do not go full throttle or you will break your wire. I am not sure I explained this well - but if you go to youtube and type in how to twist wire you will find great tips on how to do it.

You should firstly prepare your tools which is the indispensable part for your twisted bangle. pliers first! :)