I think sometimes they can be used interchangeably, at least informally.
The verb goof has several meanings, none of which are particularly flattering. It can mean:
- to make a blunder (as in, "Oops! I goofed...", also sometimes called goofing up),
- to joke around with in a teasing way (as in, "I'm just goofing with you...", also sometimes called goofing on, or goofing around with),
- or to waste time idly (as in, "We were just goofing at the mall", also sometimes called goofing around, or goofing off).
According to many dictionaries, the phrasal verb goofing off adds to a measure of irresponsibility to the simple act of fooling around – it implies loafing, particularly when one should have been doing something else. However, I'm not convinced most native speakers give much thought to that subtle distinction very often.
According to strict dictionary defintions, then, a group of teenagers hanging around on their skateboards on a Friday afternoon might be said to be goofing or goofing around. However, on a Thursday evening, that same group of teenagers might be said to be goofing off (assuming there's unfinished homework due on Friday).
Here's an Ngram you might find interesting:
![enter image description here](https://i.stack.imgur.com/l5XCk.png)
As you can see, there's not much distance between the green line and the gold line, showing that, more often than not, the word goofing is used with another word, as in the expressions goofing off or goofing around.
Dittos to JR.
This borders on a comment as opposed to an answer, but "laid back" does not mean "not proactive and doesn't care enough", at least not in the negative sense that you appear to be thinking. Rather, it means "not easily excited or upset".
To an American, at least, saying someone is "laid back" is not a negative statement. Well, except in the sense that any statement about a person could be made negative by explicitly saying that the person does it too much or in inappropriate contexts. Like, yes, you could say, "Bob is just too laid back for this job". But you could also say, "Bob is too nice" or "Bob tries too hard to be fair", etc.
You seem to be thinking more of "passive", "apathetic", "uncaring", maybe "lazy".
Best Answer
Great question! Creams are an aqueous oil/fat emulsion. This gives them a creamy consistency and are often "cream-colored" while lotions might be any color and need not be an emulsion- think Aloe Vera lotion for example. So a cream might also be called a lotion, while only creamy lotions could be called creams.
Note that Wiktionary uses viscosity as another distinguishing characteristic. I'm not so sure that it works in all case- I've seen some pretty runny creams, and some thick lotions.