I just saw a friend of mine after 7 long years. I've heard rumors that he is using shabu! How do you tell? What are the tell tale signs. Is it similar to crystal meth that's popular in the US?

For crystal meth these are the symptoms:
-losing weight
-weird round dilated eyes
-bad teeth
-crazy ideas
-etc.

How about shabu? Anybody with experience with an addict? How do you help him? I need help!