Read the names on the invitation
An invitation naming two people is different from an invitation addressed to you and a guest. A named person should not be replaced with someone else without checking with the hosts. An invitation naming only you does not automatically include a plus-one.
Look at the RSVP instructions as well as the envelope or message. If they disagree or are unclear, ask the hosts a specific question before inviting anyone. Guest counts, meals and seating may already be planned, so respect the answer even if you would prefer to attend with company.
A friend can be a plus-one
When the hosts permit an unnamed guest without additional restrictions, a friend or platonic companion can be an option. Be clear with your guest about the schedule, dress code and any costs. Make sure they actually want to attend rather than treating their presence as a favor they cannot decline.
For a professional companion, the same permission and registration requirements apply. Arrange attendance only after confirming that the host allows the guest. The service should agree a truthful introduction and should never depend on pretending to be married, engaged or romantically involved.
Submit the details the hosts need
Provide the guest’s name and any requested meal selection or accessibility information by the RSVP deadline. Ask how to report a change rather than bringing a different person without notice. A name on the seating plan is part of the hosts’ preparation.
If the wedding has several events, check the invitation for each one. Permission to attend the reception does not necessarily extend to a rehearsal dinner, welcome gathering or brunch. Share these distinctions with anyone accompanying you.
Keep the couple and the occasion at the center
Introduce your guest naturally and give them enough context to participate respectfully. Explain how you know the couple and any relevant family relationships before the wedding. Neither of you needs to offer a detailed account of your personal arrangement to other guests.
If you choose professional accompaniment, Plus One, Properly offers founder-led, platonic wedding company in the New York metropolitan area. The preparation covers names, relationships, attire and timing, and acceptance is subject to availability and service fit.