Again, Sif laughed. It was a social, amused laugh, not the kind of laugh where she was actually laughing at Loki. He was definitely making a positive impression, and maybe that would actually squeeze through his mostly-completely-anxious mind and break the wall down a little bit.
Maybe.
"I don't blame you for that! Especially if you've got training experience, and dealing with relatively unbroken and skittish horses isn't a skill everyone has." Just because she did didn't mean she expected anyone else to! This relatively unassuming man in person, extremely strong and present on stage, wasn't the sort she would expect to have that experience, either. "But you're welcome to use the space, and the barn horses, here. I have to see you ride, though, before I can allow it unsupervised and let you just check out horses -- I'm sure you understand."
She hoped, because she really hated it when people who seemed to understand the horse world really didn't.