Log into the website of trainchinese and select Content. Then Press on My Lists of Words and Cards.
All of your lists will show up, and next to each list is a button like this:
![Share this list of words with other users](http://localhost/_new_lc/v1/a_user/images/ico/share16_16.png)
Press on that button and from then on the instructions should (hopefully) be clear enough to follow.