A. One Animal
Start with single calm animal at a distance if at all possible. C/t for any looking or sniffing in that direction while staying calm.
Dog will eventually start looking at the animal, then at you in anticipation of getting the reward. When she is doing that 5 or more times in a row, start clicking the looking back at you. When she is offering that consistently, you can also start naming the behavior “Look” so it comes under verbal cue control. (Tip: “Look” is usually used to get the dog to look at something whereas “Watch” is used to get your dog’s eye contact.)
At the beginning of training sessions cue the look once, then cue simple or fun behaviors your dog knows in quick short bursts of 10 or less. Give your dog a one minute break by moving further away, disengaging eye contact, then move back in and try cuing a few more quick behaviors.
When she is successful with several sessions of that, cue slightly more difficult behaviors.
Next, at that same distance, drop the “Look” cue and just start cueing the simple behaviors. (Your dog shouldn’t need to look at the object/person of interest before doing the cued behavior.) Then try more difficult behaviors.
Next, decrease the distance a little.
Now start cueing simple or fun behaviors your dog knows in quick short bursts of 10 or less. Give your dog a one minute break, then try a few more.
When she is successful with several sessions of that, try slightly more difficult behaviors.
Decrease the distance again. Repeat as above.
Before you get too close to the animal, decide what is a safe distance and if you want your dog to actually interact. If you choose to have her interact, make sure there are other knowledgable people handling the other animal(s) and have a plan. Watch carefully for body language (to indicate stress levels) and have one or both animals confined behind a fence or on a leash so you can move them apart quickly if needed.
B. Multiple Animals
When your dog is able to work with you fairly close to one animal, add a second and work your way from the beginning through the same process. Remember that adding a second animal may chance the dynamics of the group so progress more slowly. Add a few more animals in the same way.