How do you know if Someone is using Crystal Meth?

I have be told that my sister in regulation is using it, and she is living with us at the moment but I don't know how to describe the signs or what to do to get her backing.How do you know if Someone is using Crystal Meth?
If she's using, she's either chitchat all of the time or not at adjectives. If she's shooting she'll wear clothes which will cover the injection sites. She'll either be drowsy and falling asleep when she's crashing or she'll be jittery and conversation or maybe cleaning adjectives of the time. Not just broad cleaning, clean plenty to eat past its sell-by date of, shiny clean. Most individuals don't know this but, people who do crystal enjoy an odor. It's not exactly B.O. and I can't describe it either, but it's the poisons coming out contained by her sweat.
well you could smell it on her breath and possibly take her to take a drug test!
virtuous luck and I encourage her to stop if she is
Scabs on facade, talking REALLY nippy, white stuff on nostrils (depends how she's taking it), bongs, jittery, a loss of weight, staying up REALLY behind or not sleeping at all...
Tell your parents, put in the picture your sister in decree how it effects you and that you are concerned about her robustness, or if worst comes to worst, call the cops.
www.narcoticsanonymous.org
solidity loss, teeth that are detereorating, scabs on the face or arms and legs from scratch and picking, look for pharafanelia, she might injecting so look for marks on the arm,insomnia, i dunno
look up crystal meth on google and see the effects of it.
it's complicated to get back for an addict. the best route is to educate them on the drug and its effects on the body and tutor them how to get relief.
it's up to them to do the rest.