The same way you'd start any new project.
Pre-production work is key. Ask yourself: What's my ideal job? What's my ideal company?
What do I know about the company? What's the culture?
How can I find out about it?
Who do I know who may know someone who works there?
Who's the decision maker that I need to reach?
Focus on your goal.
What do you want to ask?
REHEARSE before you make the call.
It's okay to be nervous when you call. Employers want to hear sincerity, passion, someone who CARES, who wants to work.
Let me know what happens ... how it goes!