Would a girl take a guy's jacket if she wasn't attracted to him?

iNeedYourAdvice
So, pretty much I have a crush on this girl in my Computer Ed class and it was freezing yesterday and I offered her my jacket. She said: "nah, you'll be cold" and I said: "I'll be fine". She kind of giggled and said okay and helped her slip it on. She was laughing and smiling for the rest of the lesson. Does this mean she likes me back? Or am I being stupid?
Would a girl take a guy's jacket if she wasn't attracted to him?
9 Opinion