Someone who is high may speak too much or too quickly, or may have problems speaking. Someone who slurs words but does not smell like alcohol might be high. If the person you are speaking with appears to have difficulty concentrating or following the conversation, or if her thinking is unusually paranoid, deluded, or panicked, she might be high. A high person might react slowly, or might be nonreactive to surrounding people and things. If someone appears not to experience pain, he might be high. Physical coordination that seems to be rapidly deteriorating is a sign of drug use.  Someone moving as if he is drunk, but without the smell of alcohol, is possibly high. A drunk person who seems to be unusually impaired might also have taken drugs or have been drugged. Depending on the drug, a high person might be euphoric, relaxed, anxious and agitated, exhilarated, overconfident, or aggressive. Look for an unusual intensity of mood, or a quickly changing mood. If you know someone well, and she is behaving in an uncharacteristic way, that could be a sign of drug use. Sleeplessness and restlessness can be signs that someone is high, as can drowsiness. If you cannot rouse a "sleepy" person, she might have passed out and need medical attention. If you know someone well, you can tell if he is exhibiting unusually high sociability, lack of inhibition, poor judgment, or an increased or decreased appetite or sex drive. Inappropriate laughter and intense snacking are common signs of marijuana use.  Someone high on a harder drug might hallucinate, seeing or sensing things that are not there. Delirious, psychotic, or violent behavior all might be caused by drug use. Some drugged people appear to have undergone a total personality change.
استمع إلى حديث الشخص. لاحظ حركات الشخص. لاحظ الطاقة غير المعتادة أو المتغيرة. انتبه للأفعال غير المعتادة.