what i do is not use moves like stealth rock and tactics like baton pass that are too cheap and get easy wins. i also don't use cookie cutter copy and pasted ou movesets. instead i like to think up my own sets using original uu and nu pokemon.

Saying "gg" after each match is honorable as well, right?

Your right AromaFlora, Its always good to congratulate a person on their performance. Its a way of showing respect or soothing a loss. You dont want a person to be discouraged by a loss, remember, a loss can strengthen you by allowing you to go over what you may have done wrong before and improving on it.

Usually when I get challenged on Shoddy its by people who are new to this game. So when the battle is over and I'll usually say "gg" and "Nice team" and if they want I try to help them out with their team. Does that count?

I show respect to my opponent by playing to win, I do what I can to help out players less experienced than me (though those are hard to come by =P), I thank my opponent for a good match, win or lose.

Stealth Rock isn't cheap, and baton pass is surprisingly difficult to pull off and limiting yourself to UU/NU is just depriving yourself.

That said, always saying GG is the way to go (and saying good luck at the start of the battle helps too) :)

Always saying GG after battles, never D/Cing, and if connection gets laggy, I always run first =)

As well as ending with gg, I also start the match with "gl and hf".

Saying GG after each battle and wishing the opponent good luck in the beginning. If I see major weaks in the opponents team, I try to give advice after the battle. I play OU, Suspect and Ubers. Even if I battle a total noob who gets defeated for sure, I say GG and give advice. I am trying to be nice to everyone.

I try to say GL, unless they piss me off. I also say GG, unless, once again, they piss me off.