You must ensure that your other social profiles are in consistency with your LinkedIn profile. Please use appropriate Visibility settings on your Facebook profile to keep your personal updates visible to Friends only. If you are adding your professional network also as friends on Facebook, then please be careful with what you post there. Every action you take on your social media will generate a vibration which can impact your personal brand.
What else is important when it comes to Personal Branding?
Other social profiles - Facebook, Twitter, Business WhatsApp
Your own websites
The above are the Online Assets of your Personal Brand. These are under your control and you can modify or update them yourself.
Ensure to have your profile fully updated on Facebook as well as Twitter or any other social media you use. Ensure to provide links to LinkedIn or your website from them.
Read this blog of ours to take the first step towards building your Personal Brand: