How do I add more than one guest

On my form I have a tick box for people to add a guest and I just realized that they might want to bring more than one guest.  How do I add a place for them to indicate how many guests?

You can add a radio button field that would ask them to add a guest, yes or no options. Add another field or the needed fields for the additional guest. You can then show the fields when yes is selected from the radio button.

https://www.jotform.com/help/316-How-to-show-or-hide-a-field-in-the-form-based-on-the-other-field-input-or-selection

Or this guide to show/hide multiple fields at once: https://www.jotform.com/help/196-Hide-or-Show-Multiple-Fields-at-Once. 

If want to let people add an unlimited number of guest, you may consider using our configurable list widget: https://www.jotform.com/help/282-How-to-Set-Up-the-Configurable-List-Widget.