To comment on a candidate and discuss its HiPeople profile with your hiring team, navigate to the candidate's Reference Feedback or Responses tab within their Candidate Profile and scroll down to the bottom of the screen where you'll see the 'Comments about...' section.

To mention a colleague, that also has access to the job, in a comment simply type @ followed by your colleague's name (e.g @Karen Lee) or select a user from the dropdown that pops up once you type an @. Your colleague will then get an email letting them know there's a conversation for them to join. 🙌