being good at it
Yes.
No, it is not well defined. For example, I enjoy math so math would be an enjoyable subject for me. But many people do not enjoy math, so it would not be an enjoyable subject for them. So this is not a well defined set since the answer would depend upon the person you talked to.
Social is a good way and your not right
It is the variety that makes my job enjoyable
It makes it more enjoyable for a crowd.
It makes the food more visually enjoyable and in some cases, makes it tast better
It is a matter of opinion, really. In my opinion, I think that the storyline and the characters' personalites make the story enjoyable and makes J.K Rowling's readers keep moving on.
No. It makes school less enjoyable
a phycoligist travels and makes money by dong math
Idk
Math makes sense grade 6
No, but it sure makes misery a lot more enjoyable. Alternatively: No, but it can rent it.