It's not so much that you can get high off of it, but it gives you a sence of paresthesia, or "pins and needles". The effects of it are less and less as the older you are, so if she's decently young, it gives them that feeling as well as somewhat as a light-headed feeling.
If she's taking more then she needs to at once, then it takes away from concentration, making it hard to keep a convorsation and clearly hear what people are saying to them.
I really hope this helped. :]