Just Do It!
You know, you can read a few books on being an MC, study other people live or on video, but there is no better way to learn, than just doing it. Every hour you do as an MC will help you improve.
So get out there and just do it.
Volunteer with your local associations, community groups, schools, charities etc. Have a brainstorm session about who is holding meetings in your area. Often local papers have listings of community and not for profit events.
Every time you do one, you will get better. But you’ll also get testimonial letters to help with your marketing efforts. Debrief after each session you did. What worked, what didn’t and what you would do differently next time.