I think it should be subtle. If there is too much it screams high maintenance. It's tacky and seems low-class. Plus the taste is horrible. If you kiss a girl you don't want to taste her makeup. That's why I never shared cokes with my mom. The caked on look is nasty. Less is always more. It should accent your natural features. Not completely hide them and turn you into a different person.
... I don't know I like them better bare... as to why I don't know maybe I like tru beauty lol idk... but the girl I'm with know just wears lip gloss and I think a little bit of eyeliner... I like simple better