Through endorsements, participants can publicly show that they want to support a particular content, for instance, a proposal.
This is done through the button in the sidebar. Administrators can enable or disable them by step in a given participatory process, and they can also define permissions with authorizations.
When a participant belongs to a verified group she can also endorse like that group by selecting the identity.
By default the endorsements list is collapsed. To see it fully visitors need too click in the "(see more)" link.