Assume the conversation can influence the recruiter's view of your candidacy even if it is not a formal scored interview.

Prepare your story and questions the same way you would for professional recruiter outreach. The consulting recruiter communication guide also gives useful context on how to keep interactions concise and professional.

Be clear about why consulting, why BCG, and why that office. Then let the conversation remain conversational rather than forcing every answer into a polished speech.

Mine was mostly background + why office.

Do not over-script it. Recruiters can tell.