By definition, your role with black is different than with white, and so you shouldn't just blindly play the same moves.
But the same principles hold true. Develop your pieces, get castled, try not to blunder all your stuff away, and get ready for the middlegame.
Take a brief look in any database and you can see a lot of approaches for black against all of the main white opening moves (1. e4, 1. d4, 1. Nf3, and 1. c4). They're all playable at class level. Experiment and see what you like. A lot of people would say to meet e4 with e5 at the lower ratings, since it's supposedly the most instructive way to play, although I'm not sure I believe that's necessary if you want to play another opening.
So I've noticed that I've got a higher loss ratio when I play black. It's particularly hard when I play against the computer.
I know, I know. The computer has been getting a lot of slack. But I've found it extremely helpful when warming up before a good chess session. After 2 quick warm up games I'm good to go. I set the difficulty high and even when I loose, it seems like my chess is a lot better in the next few games agains non-androids (people). What's your opinion?
I also noticed that the way I think is more defensive in black and more attacking in white. Is that normal?
Is the best openings for black the same as what white would play?
Any comments would be appreciated.