Ann says, “Getting an invitation to speak at an industry trade show or event is a great way to elevate your profile in your industry, confirm that you know your stuff, share your knowledge, make great contacts, and (of course) indulge your inner ham.”
There are a few tricks to it, however. Read and learn.
Get a Speaking Gig: How Event Producers Decide Who Gets Onstage (MarketingProfs article)
Get a Speaking Gig [Interview Out takes] (blog post)