If your intention is to just sleep with me, I would pick it up pretty fast. If your intention is to cheat, probably that too. If your intention is genuine enough to date and look forward to something meaningful, I would check if I feel the same way with you, and if it matches, we are good to go. There were many times in the past when I had shut my intuition down and had paid the price for it.
Having said about their intuitions, I pay attention to mine all the time. Am I just being with them cose I am horny, Am I with then cose I am lonely? am I being with them so that I can use them and leave them later? Am I with them because I feel sorry for them or because I need something from them? Will there be mutuality in the relationship? May be I look into all this because, I am sure someone whom I would connect with can feel the "vibe" of mine.
Sometimes when hormones take over, your vibes don't work. you simply "fall" for someone, and may be that's why "love is blind", but then "will you suggest your best friend to date a guy like him?", is the question I ask, because you care for your close ones more than yourself. and then you look at the person with the "vibe" on. and viola!
Sometimes I would feel guilty for not "feeling" it just looking at their face. I wonder why I do that. How do i "know" that it wont work out without even giving a chance. Then I leave it to nature, as I believe we innately know what we are looking for.
The best of vibes I get are from those who are "authentic". It is better to loose someone with your truths than gain someone with your lies. If the person on the other end is "authentic", there is nothing more I would want. If there is someone who is authentic to everyone around them, may be it would be a tad bit annoying, but it would be better to know what they are feeling, than be with someone who is "faking" it. They can of course "fake it" with words, but not so much by actions!
May be I would unwind with people like that. with whom I innately feel comfortable!, with them I would have a sexual quotient, and THAT makes me Demisexual.