Hmm..just quickly & depends on the relationship & training.
Nip huggers -
www.nip-huggers.com. Can NOT praise these lil suckers enough - beautiful and oh so effective.
Google Sylvia Monthau (spelling?) her body jewelry is amazing. "fairy" works - or so I've heard.
Body chains are my fav. Linked to collar, nips. clit, balls, head, buttplug in any combo - always effective. Just have one running down the back - easiest most discreet way to tug.
Pre planning - preinstructions. How does she walk, stand, speak? Hands in lap? on table? legs crossed? ankles crossed? open? Does she get to eat at dinner? Feed herself? Use utensils? Eat from your hand? Get to speak at all? Look at anyone? Move at all w/out being told by you? The smallest most insignificant "control" is magnified when in a public setting. Doesn't have to be fuckin on top of the table at a 4 star restaurant or being led around on a leash. Start small work your way into more intricacies. I always get my best most ah-hah! moments when in scene.