She only likes being patted or even touched on her own terms, once you get to know her it's easy to spot the signs that she's not impressed, she scowls or twitches her tail.
What's interesting though is how she behaves around little babies. She'll smack or bite anyone without a moments hesitation(as our kids have and are learning) but little weeny babies she'll tolerate. They'll yank on her, pull her ears, yank her tail and she'll just sit there, scowling with her ears down, but she won't react. But once the babies get to around 9 months old it's no holds barred, at first it's just a light wack to warn them, then a light bite, after that it's good hard scratch or bite, then she'll run away. LOL our dog is terrified of her