The brass should be washed in IPA before use to clean off any chemicals leftover from the etching process. To bend the brass use a vice with accurate smooth jaws to hold the part, and a small square to do the bending. Another alternative is to go to http://www.thesmallshop.com/ and order a device called a hold 'n' fold. For smaller pieces you can use a pair of pliers, providing the jaws are smooth and not serated in any way.
As for glue, you should use a form of CA or super glue, apply sparingly to where you want the part to go, not to the part (otherwise you will almost certainly glue the part to the tweezers!).
Hope this is of help.
Phil