when you are drunk you feel tipsy or angry and your head feels heavy but when you wake up the next day you have a hangover depends of what kind of drunk you are!!!
its called a blackout and it occurs in many alcoholics they will NEVER,NEVER,NEVER remember what they said or did ever in their life even if they quit drinking now, its a part of the brain that...
He/ she will start acting REALLY wierd. They might get angry real easily or they could start getting really happy and they usually start walking funny, swaying and they say a lot of stupid things.
Drive them home. It is impossible to sober up a person who is drunk. Their body must metabolize the alcohol in its own time. Coffee doesn't help -- you just end up with a wide-awake drunk.