Dead topic revival... 3.... 2... 1... "Clear!" {Crack!!!} Wait! I'm getting QRS waves! Let's see if we can establish a normal sinus rhythm... "tha, thump, tha, thump!" "Run an IV line, give him an epinephrine push, stat!!!"
Okay, topic revival achieved!
Drunk people have anesthetized their upper (critical; judgemental) brain centers. They have no critical judgement left. You are peering into their naked id if they are still able to communicate. Most likely they have lost any self-awareness, any awareness of their surroundings. Yes of course you can access their subconscious if they are still able to communicate. But... you are still talking with a drunk!
They have lost their capability of judgement. That's why DUI is a crime.
Sure they can and may tell things they wouldn't want to reveal if they were aware of what they are saying. But at this stage (perhaps 0.20% BAC) they are stupors or barely conscious, their upper (cognitive) brain centers suppressed, because the upper brain is the first to go. You are now facing a human lizard. Lower functions intact, breathing intact, but not the full intellect; that is still anesthetized. Judgemental centers are an abstract, once a functioning part now mere theory—not a functional part of a dunk person.
Ask them anything you want. They are drunk. Will they talk? Maybe... Will they tell you the truth, tell you their most inner thoughts? Possibly but not likely, not because they don't want to ("want" is one of the conscious precepts that is lost in anesthesia). What you are talking to is a random noise generator with a faulty connection to memory that is so impaired that they may or may not give you valid, reliable information.
Do you believe them? Roll the dice, spin the roulette wheel, get out the Ouija board, find a drunkromancer (I just invented that word!), get a psychologist (and give her a drink, it might improve the connection or at least is polite).
Do drunk people tell the truth? Sure. Do drunk people tell lies? Sure. You have an unreliable window into their subconscious. How well do you understand your own subconscious? And you are trusting a drunk's understanding of their own subconscious? The mere fact that they are drunk in the first place tells you a lot about their character? Who in their right mind would get themselves skunky drunk in public?
At least I reserve such periods to drinking alone, although they are very seldom occasions.
And what's this about women? Yes, of course, women are simply at a biological disadvantage due to their constitution that they are more subject to the effects of alcohol, and even worse, are more subject to the debilitation of alcoholism. Their poor luck of the draw in genetics, not their fault, nobody gets to pick their gender.
And we men should face another gender trait: women are simply better at empathy and socializing than men. Their domain is family, men's domain is war. I envy women in this. And of course when women get drunk some of them get more gregarious and looser at talking—not that men are not subject to the same thing although possibly to a lesser degree.
My advice: If you want to find what a woman really thinks, get her over dinner in a nice tête–à –tête, pour a her a nice glass of wine, hug and kiss her, and then ask her what you want to know. You don't need to drug women with alcohol to discover their feelings. They're social. Be nice to them, just ask them. If you've found a nice woman, more likely than not she'll tell you, and you'll both be closer after your discussion.
And even better, both of you will remember your closeness.