Mariah is the author of What Do I Do?, a modern wedding etiquette guide that offers practical, fun advice to help couples navigate every stage of their wedding with confidence and joy. She also created The Essential Wedding Planner, a thoughtfully designed companion filled with checklists, timelines, and intentional reminders to keep couples organized and focused on what matters most. Both books are available for purchase online.

Mariah's  Books

What Do I Do?

Weddings should be joyful celebrations of love, but we know they can sometimes feel like minefields of complicated social rules and awkward situations. That’s why Mariah wrote What Do I Do?—to become your trusted confidant as you navigate your wedding. She goes beyond outdated etiquette rules to give you the modern essentials in a fun Q&A format. Each chapter begins with current etiquette guidance and ends with answers to the questions Mariah hears most, making this an easy-to-follow guide for any wedding celebrant.

Through this book, Mariah shares fresh, practical advice to help you plan and celebrate your day with confidence. She will show you how to have your cake and eat it too, all without a single crumb on your face. From the ring pop to popping the champagne at the reception, Mariah will help you manage your wedding with grace, sparkle, and joy.

The Essential Wedding Planner

Although weddings are exciting celebrations of love, we know they can also come with endless to-do lists, shopping trips, and tough decisions. That’s why Mariah created The Essential Wedding Planner to guide you every step of the way with lists, schedules, and reminders—from your budget to post-wedding events and thank-you notes.

Worried about remembering that dress-fitting appointment or accidentally seating Uncle Charlie next to Great Aunt Barb? Mariah designed this planner to help you quiet the noise and reduce the stress. Filled with intentional reminders to inspire joy and love, it keeps you focused on what matters most—the celebration itself.

MARIAH G. HUMBERT

MARIAH G. HUMBERT


A few of Mariah’s powerful tools to help you shine with confidence, forge meaningful connections, and distinguish yourself.

I truly believe etiquette is far more than a set of rules, but rather a set of tools to empower people to shine with confidence, form meaningful connections, and stand out with authenticity.

For me, etiquette is far more than knowing which fork to use. It is the art of social awareness, emotional intelligence, and personal empowerment. I believe that when we understand how to navigate social and professional spaces with intention, we free ourselves to share our gifts with clarity, confidence, and grace.

My approach is warm, modern, and rooted in a deep respect for this timeless discipline. I guide my clients through the nuances of social and professional settings, helping them move through every interaction with ease, kindness, and intention. To me, true polish is not about perfection. It is about presence, awareness, and authenticity.

Through bespoke consultations, corporate trainings, and engaging keynotes, I equip individuals and organizations with the tools to present themselves thoughtfully and powerfully, ensuring their presence reflects the depth of their talent.

FORMERLY KNOWN AS “OLD SOUL ETIQUETTE”

MARIAH G. HUMBERT

MARIAH G. HUMBERT

services and consulting

Mariah’s services include private 1:1 personal development coaching, virtually or in New York City, with focused sessions in dining, social and business etiquette, personal branding and image, communication, media training, interview preparation, and special event readiness. For businesses and corporations, she leads workshops and provide consulting in professional presence, workplace communication, client etiquette, networking, business dining, hospitality training, executive presence, onboarding, and company conduct.

Mariah offers a wide variety of services for companies, corporations, small groups, and in personal settings.