No one ever admits to being an addict. Any addiction begins as a simple prank or an attempt to relieve stress. The surest sign is needle punctures on the arms or groin area, but not all drug addictions involve needles. help someone with addiction is often very difficult . Be sure to pay attention to behavior and appearance – mood swings, dilated pupils, pale skin, problems with sleep and appetite. But if you can be supportive and helpful, you could save someone’s life.