How to know which tequila should be for drinks and which one meant to be drank on its own A while ago I was told that I should choose my tequilas carefully since ones are meant to be drank on their own(not chased, not mixed) and others (supposedly cause they're lower quality) can and should be mixed. So now that the scope of the site has been changed I feel like I can now ask this here.

So what are the characteristics I should look for in a tequila(other than price) to learn how to differentiate a good-for-drinks tequila from a drink-it-on-its-own one?
Tequila has come a long way from when it was 1st manufactured, back in the day the traditional way to drink tequila was in a shot glass because it actually did taste like you were drinking paint stripper!... this is not the case anymore, now some tequila is drank from wide mouth cups and sipped like wine or a really nice bourbon. Contrary to popular belief tequila doest always give you the craziest hang over, at least not the newer tequilas since they are better quality, that is, if you are drinking real tequila. Real tequila is made from the agave plant and depending on the region grown in Mexico ( south, north) will have a slight different taste. Sometimes you may find tequilas that say mixto or mixed, stay away from these types since they are not pure tequila and should not be drank without mixing it in a cocktail or mix drink. This mixto tequila will not taste as good and will give you a crappy headache the next day. There are different types of aging process for tequilas. There is the silver, gold or aged and extra aged, all have distinct flavors and undertones. Here is a good link with some tequila information and history also for tasting.
So if the bottle says mixed or mixto then it's for mixing and should not be drank alone unless you want to feel like a truck hit you the next day.
Any other kind of real tequila should be ok, it all depends on taste and preference. 
Just remember that the first swig you take is suppose to burn, lol enjoy!

This is just my opinion, but on a personal note, patron is over hyped and you can find way
Better quality tequilas at a better price. I personally like casamigos the brand by George clooney it's actually pretty good, also Don Julio and Herradura  are good.