Glue parts together using Tamiya Cement. Apply a small amount of cement to one of the gluing surfaces and press the parts together. Leave for a while until cement has completely hardened.
Cement does not work on metal plated surfaces. Scratch off plating of the gluing surface using a knife.
Tweezers can be really handy
It is hard to get a good grip on small parts using just your fingers. This can often result in getting cement onto your fingers and dirtying the parts. Using tweezers helps solve this problem