I acutally work in a doggy daycare here in Calgary. Ours however is a different setup then most as well choose to leave the dogs alone. What we do is seperate them into play groups based on age, size, and play style and let them have a good time with minimal human interference. We've found that if the humans step in to the room to much (which yes we do have to do every now and then just to calm them down if they get to rowdy or to take the odd dog or two out) that they start looking to the people for cues how to behave.

For the most part we've found that when we leave the dogs alone they start to pick up the k9 body languge, at my work we've even had dogs who were under socialized who didn't know the proper languge. What we did with them was to put them in a seperate room with one or two really good dogs that have excellent communications skills (usually the ones that have grown up at the daycare) and let them have some solo time with them while we watch outside the door then gradually increase the number of dogs until they can be in with the main packs.

In other words the only time I would interfere would be if they were on the verge of bodily harm, k9 communication is the type of thing that the dogs have to pick up on their own, but it wouldn't hurt for her to go to doggy daycare where should would have a chance to get to meet different dogs maybe even some who have the same type of play style as her.