W​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​hat is the difference between sympathy and empathy? Why does ​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​the use of empathy make someone a more effective communicator​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​?