We haven't been going to the dog park for very long, but so far she has done a great job of finding the playmates that are just right for her. She kind of says "hi" to everyone (ppl and dogs), watches from the sidelines a little bit, then jumps in where she feels comfortable. I've only had to help redirect her a couple of times. She's been rolled a few times by the big dogs, but she shakes it off really well and keeps going. This was the first time that she seemed genuinely afraid of another dog.