Welcome!
Mariah Grumet Humbert is a certified etiquette trainer, author, and lifestyle connoisseur. As the founder of Old Soul Etiquette, she champions the idea that etiquette is much more than a set of rules– it is a powerful tool to help individuals build confidence, create meaningful connections, and share their gifts with the world. Mariah works with individuals and organizations across the globe, offering private consulting, interactive workshops, webinars, and keynotes on various topics related to etiquette, social confidence, and the art of living well. With her warm and modern approach, Mariah helps her clients navigate the nuances of various social and professional situations with authenticity, kindness, intention, and a strong level of emotional intelligence. Mariah is based in NYC and is available to travel upon request.
OSE’s Services
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Old Soul Etiquette offers on-site and virtual etiquette presentations to empower teams and groups to polish their presence, become more effective communicators, improve their confidence, and reach their full potential in their personal and professional lives. All speaking engagements and special event presentations are customized to fit the needs and goals of each organization or group. Please fill out the form to learn more.
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Old Soul Etiquette offers Business Etiquette training both in-person and virtually to empower teams to polish their professional presence, become more effective communicators, improve client relations and more. All trainings and workshops are customized to meet the needs, goals, and values of each individual company and industry. Mariah’s clients span across industries such as high jewelry, finance, education, real estate, talent management, utility, hospitality, and more.
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Private sessions with Mariah are completely customized to fit the personal goals and needs of each individual. Both virtual and in-person sessions are available.
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Learn on your own time and at your own pace with Old Soul Etiquette’s library of on-demand webinars!
Mariah’s Books
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What Do I Do? Every Wedding Etiquette Question Answered
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The Essential Wedding Planner
Mariah on NBC News
Mariah sits down with Vicky Nguyen and Morgan Radford to discuss how modern etiquette can help teens gain confidence.
Mariah on The Today Show
Join Mariah as she gives Hoda and Jenna a lesson in Afternoon Tea Etiquette at Tiffany’s exquisite Blue Box Cafe by Chef Daniel Boulud.
Mariah in The New Yorker
Mariah sits down with “S.N.L” alum, comedian, and actress kate mckinnon to change her view on etiquette.
