Stupor - Overall decreased activity and interaction with environment
Catalepsy - Body remains in position that examiner places it in ("pretzel-shaping")
Waxy Flexibility - Resistance to positioning, like bending a candle
Mannerisms - odd movements
Echolalia - mimicking speech
Echopraxia - mimicking movements
Catatonia
Hypoxic encephalopathy
Dysphonia
Acute toxic-metabolic encephalopathy 
Opsoclonus
Hypoglycemia
Tremor
Hyperosmolar state 