Make sure that you are not being stingy with your reinforcements- food or otherwise. Check this first if you notice your training is breaking down.
Do not put too much pressure on yourself or your animal! Keep it short and engaging for all participants.
Ensure that the animal is not bored outside of regular training sessions by enriching their daily life.
By having basics like sit/stand/down fluent, you will be able to train more complex behaviours
Learn to recognize and respond to the signals your animal exhibits
Include all members who will interact regularly with your animal in their training