Link ability
When an empathic link is active with another character, the empath can temporarily add their knowledge to their own via this Link ability. In this way, an empath can then teach another empath a class on Empathy itself.
Learning how to Link
You learn how to Link by having a fellow empath link to you. By accepting the link, you then learn how and can ever after link to other people. There are no other requirements.
Establishing the Link
As an Empath, you do
TOUCH (person) LINK (person) (skill)
The other person has to accept the link, by doing
LINK (empath)
If successful, the link will form. The link will stay active for as long as the both of you have enough fatigue and concentration. The link will also pass along a tiny bit of experience.
Teaching a class on Empathy
To teach a class on Empathy, have your student link to you. After accepting the link, you can then teach the class via the normal TEACH syntax. You will only be able to have one student at any one time, and the learning is supposedly one of the worser ways to gain empathy experience (this is by design).