alexander,
Please let me know if you would like me to further elaborate on something specific after reviewing my response to Katia's question. I believe you will find the suggestions to answer this question as your question is the same as hers. I mention that on social media platforms, the user is the one who determines what they disclose and share so if you wish to be more private, this is simply a decision to be strategic in your choices regarding your social media usage. Additionally, you can create a separate account used for professional purposes if you wish to have more control over your professional vs. personal usage if you use social media for both. Regarding the relationship you have with students/alumni, how you manage your relationship so that students don't see you as a peer vs. a Career Advisor would be the same in real life. In regular face-to-face interactions, what typically separates personal from professional is the same in the social space. I would pose the question back to you. How do you currently keep boundaries with your students?
Robert Starks Jr.