I actually think most emotions are more or less the same (be it with different intensity), just because of the genetic similarities and similar upbringings. But how we react to different situation does differ greatly, and just because you've been in the same situation doesn't mean you know exactly how the other person feels. I also think that reacting to different situation depends more on upbringing than it does on genetics. People can be raised to be very introvert, for example. Experiments with mice have also been able to document that for example being easily angered is not at all genetic. (Although anger as an emotion doesn't differ too much)
On a side note, I do think most people's blues look very alike, just because I don't see how it could be so very different, when we're genetically pretty similar, but you never know, and we'll probably never know.
On a side note, I do think most people's blues look very alike, just because I don't see how it could be so very different, when we're genetically pretty similar, but you never know, and we'll probably never know.