10 days ago I started clicker training my 5 mth old Benji. I had a reputable woman come to the house to show me the basics.  By the time she left (1 hour) she had Benji sitting and coming to her.  After she left I added the voice command.  He now sits, comes to me, and last night I started the lay down command.  Next it's the stay command and so on.
 
Use this site:  
http://www.clickerlessons.com/clicker.html 
It has all the procedures.  I alternate using the clicker and a 'bridge word'..I use 'Good Boy'.   
Other poster is so right, Yorkies are so smart and want to make you happy.  Good Luck,
Nancy