LPT: If you're going to drink out of a shared cup (like at a party or when trying a new wine), first pour a bit into a separate cup to inspect before drinking.

When I was younger, a friend of a friend brought over a silver cup to pass around when having drinks. I took a swig out of the cup and didn't like how the drink tasted, so I let it sit. Later, we discovered that the cup had been used to mix Gatorade and beer. <br><br>Ever since, I've been doing this trick where you pour a little bit into another cup before taking a drink. It doesn't really affect the amount of liquid in the cup, but it helps you inspect what you're about to drink, and you can use that extra cup for yourself if you prefer that over the main one.