Acknowledge a recommendation and suggest that using these traits will make them successful in the role you are approaching them for
Tell them that you have read their profile – acknowledge something specific (the role, how long, specialism), original content they created is always a great thing to mention.
Tell them that you’ve read their advertisement – again acknowledging specific vacancies – if they are active regularly on Linkedin, mention it
Talk about why you chose to contact them
Quotes are King, quote peoples recommendations, their profile, anything to strengthen the sell and the unique approach