I know a lady (who shall remain nameless) who can tell right off the bat how the guy is going to taste and if, (if she was interested in him) she would consider giving him a BJ. If he drinks beer, not so much, dark beer, not at all. Straight whiskeys, maybe, water only, most likely but if he is drinking water at a party or a pub he probably is an ex alchy and they can be soooo much drama so why bother?