For more control over the appearance of the guest list, use the Guest list options add-on. Once it’s activated, you will notice the Guest List Options box appear, where you can specify how you would like guest avatars and guest names to appear:
1. The Guest Avatar options let you customize the avatar, either by selecting not to show any avatar, or selecting an avatar size: small, medium or large.
2. The Guest Name options lets you customize how the guest’s name appears. You can select ‘Do not show name’ or you can select from the following options:
3. The Show prettified guest list names options let you also show those customized guest names in the admin area as well as within exported RSVP lists.
Once finished with all these settings, remember to ‘Save Changes’.