My Cali (under 4 #) does agility. Not because we are good, but because she loves it. She is not treat motivated (she is a service dog) but she loves the praise. I have found she will go for boiled chicken and string cheese if she is hungry. Clicker does not work for her so we did not get into that, but many do use it.
Good luck! Enjoy the great bond you will establish with your pup! And.....it is good exercise!
__________________ .  Cali  , and Cali's keeper and staff, Jay No, not a "mini" Yorkie - She loves to motor in her Mini Cooper car |