I think its easy to attack without considering the consequences of our actions. It is easy to say something is bad simply because it fails to meet our paradigm of thought. Critical thought is hard, to stay on course with its edicts we must follow its teachings and consider others. It teaches us to explore our thoughts and feelings. To develop an understanding of our ideology and find ways to bridge our world with others. It teaches us to consider the thoughts and feelings of others. To imagine what it is like to be them, so we can treat them fairly based on their circumstance.
What good does any of this do if we don’t know how to apply these teachings to our daily lives? An expert isn’t born, to be proficient in a skill we must practice. Practice is more than memorization, it is exploration and experimentation as well. We can sit behind old books all day learning what the dead say about body language and tonality, but this equates to nothing if we are unwilling to explore our skills.
What is empathy? “the ability to share someone else’s feelings or experiences by imagining what it would be like to be in that person’s situation.” 
How do we use the skill of empathy? How can I imagine what it would be like if the situation could never conceivably happen to me? Empathy requires imagination, you must have the ability to see something that doesn’t exist. If imagining something like this is outside of your capacity I suggest exploring a few new hobbies. Consider going to your local hobby store to join a role-playing group, get involved in a game where you can play a character and experience an imaginary world. Perhaps find a local writing group and explore fictional writing or experiment with art. If your mind is no longer in touch with your heart it will be very difficult imagining what it would be like to be in another person’s situation.
Mind Tools presents a good primer to practice empathy.
Empathy at Work 
- Put aside your viewpoint, and try to see things from the other person’s point of view.
- Validate the other person’s perspective.
- Examine your attitude.
- Ask what the other person would do.
I would suggest giving their interpretation of empathy a good read, you can find this article at: https://www.mindtools.com/pages/article/EmpathyatWork.htm.
To empathize with someone, we need to imagine we are them. What would it be like to be them in this situation. If you were them, how would you feel? If you were them, how would you want to be treated?
 “Empathy” Dictionary. Cambrdge Dictionary. Web. 12 December 2017. < https://dictionary.cambridge.org/us/dictionary/english/empathy>
 “Empathy at Work” Mind Tools. Web. 12 December 2017. < https://www.mindtools.com/pages/article/EmpathyatWork.htm.