Positive Connotations:
* Skillful and adept: "He's a slick basketball player, always making those amazing moves."
* Stylish and sophisticated: "She wore a slick, black leather jacket that made her look so cool."
* Smooth and effortless: "The magician pulled off the trick with a slick, deceptive move."
* Clever and resourceful: "He got the job done with a slick solution that nobody else had thought of."
Important Note:
While "slick" can be positive in some cases, it can also have a negative connotation implying deception or superficiality. It's important to be aware of the context and the speaker's intent to understand the intended meaning.