Due to the extremely hard winter we experienced this year, many of the evergreens in the gardens I tend to are suffering from winterkill. This is evident by rust brown tips and occasionally whole branches. To remove this winterkill, run your gloved hand over the affected branches so the dead needles fall off. If a bare tip is exposed, snip it off. If a whole branch is dead, remove it to the base of the plant or at least back to where it is still green.
Evergreen shrubs can be pruned or shaped this way as well, by removing whole branches back to their base. If you cut only part of the branch off you will be leaving an exposed stem which is unsightly.