How to use social share buttons on your website without tracing of the users by the linked social media (if they don’t want to): Social Share Privacy this is what they offer (ready to implement):

See opinion of the French Commission nationale de l’informatique et des libertés (CNIL) about this solution (as consent): “Solutions pour les boutons sociaux”

Example of a website with Social Share Privacy: see bottom of the page (and enjoy the cookiewarning):