We have all heard of the story of two different cops that work with you. One will back you in the toughest fight at the drop of a hat; probably has a broken nose and is maybe Irish like me. Always there for a hot, dynamic call and ready to go anytime. These are the "manly" officers that every squad needs a few of for those special and "just in case" calls.
On the other side of the spectrum are those officers that can cool off the hottest heads. They have great communications skills and could probably charm the birds out of the trees if they needed to. They know how to read people's body language and how to guide them from perturbed, disturbed, and ready to fight to nearly apologetic for bothering you. Now, some may ask which officer you would like to have riding next to you. Or better yet, which officer are you. The best of both worlds would be the great communicator who is also a warrior.
Learn While Young
I do not know what your academy or FTO process teaches you. I would now recommend that you enroll in a Verbal Judo or MOAB course to learn the finer arts of what I call "tactical talking." These two courses or similar ones will teach you not only the intricate means of police communication, but also survival.
When we deal with the emotionally disturbed person (EDP), people at domestic disputes, or those with chemicals in their system, knowing how to engage them with proper, systematic conversation that is coupled with the appropriate body language will be a key to success. These classes also teach you great survival tactics, such as how to read subjects, actions that are indicative to non-compliance, and so forth.