Worried

i am worried that a family member might be using drugs (meth). what are some of the symptoms we should look for??

Dilated pupils, excessive perspiration, talking more than usual ....rambling on, .. .. compulsive behaviours... rapid heartbeat, depending how well they tolerate meth ... some will pick at their skin non-stop, some get very paranoid, behaving agitated and not being able to stop fidgeting... very wild sleep patterns ....( like they never sleep for days , then in less they have a huge supply .... they crash for days ...sleep non stop for at least a couple days ) different people have different tolerences ...myself for the most part nobody ever knew ..... others cant help but be obvious, like the guy on mad tv if you have ever seen it ....Mr. coffee. ...depending on how they ingest it has some clues also ....smokers you will find strips of foil, straws or tubes to inhale the smoke ..... or glass pipes, snorters usually end up sniffing a lot ..or wiping their nose ......but so do people with colds .... ...oh ..and they usually dont have much of an appettite ......