Be that guy...
Be that guy who encourages his teammates during a rough match. Be that guy who apologizes for making bad plays and bad calls, and doesn't blame someone else for it. Be that guy who commends his enemies for making good plays, but says nothing when they make bad plays. Be that guy who painstakingly buys a Vision Ward when nobody else would. Be that guy who refrains from responding to toxic teammates with an insult. Be that guy who thanks a good teammate for carrying them. Be that guy who humbly carries a team without saying a word. Be that guy who remains humble, sportsmanlike, and kind even during the worst of matches. Be that guy who doesn't argue during the post game lobby, Be that guy who always types, "gg" after a match and mean it.