Roleplayers pretty much need the same things from each other. We need a group, whether two or a hundred. We need acceptance in the group, both in who they are and how they play. We need input in what is happening. And sometimes, if we are lucky the roleplaying community at large can give us exactly what we need. There is a world of roleplayers out there, and that is a good thing. But like any other shared resource, we also need to help take care of it.

• Learn Something New - We all started roleplaying as something new and untested. Often we find ourselves stuck with the first thing that clicked, and looking no further. Try to find another way to play, another type of character, another role to play in your group, or even another group. You don't need to leave the comfortable behind, but at worst you'll better appreciate other roleplayers, and at best you might find something even better.
• Teach Something New - We've all have different experiences, even if we've always played together. We each have different strengths and that helps us have fun when we play. Lending that strength and helping another player learn it helps them understand you, and you to understand them. Teach how to create better characters, how to handle combat tactics, or how to play the social game. But remember to learn as you teach, you are not trying to teach the right way to play, but rather to show new ways to play.
• Know What You Enjoy - We enjoy playing RPGs right? But that's often not all, some parts we like, and some parts we find unbearable. One thing you can do is to look how you respond to a game, and see what the different parts are. One way to do that is to keep personal notes, listing when you had fun, and when you didn't. Then if you find yourself getting bored, motivate for something you enjoy more. But don't neglect the other times, think about why you aren't having fun, sometimes it's just a matter of expectations.
• Find What Others Enjoy - We need each other to enjoy roleplaying, which means sometimes we shouldn't focus on what we enjoy, but on learning what other players enjoy. The same sort of note taking can be very helpful. By knowing what other players enjoy you can know what to teach them, and what to learn from them. You can also help make sure that they enjoy the game. Which will make them more amiable when seeking your own enjoyment, or even better to help find something you all enjoy in the game.
• Be Kind With New Players - Habit is easy. And trying new things can be very difficult. But one of the most important things we can do for the roleplaying community is to help the new players transform their interest into understanding. This will always be a gradual process. Not everyone who is interested will keep involved. But our treatment of these "newbies" is important even if they don't stick with it. The better they understand, the better our hobby will be understood, both within and from the outside. And remember, just because they are new, doesn't mean that we don't have things to learn from them.
• Encourage Retired Players - As roleplayers grow up, many of us leave the hobby. Some do this because it no longer interests them as a whole, but many do not. Many players retire because their impression of roleplaying is adolescent. Offer them an RPG that isn't. Many players retire because they have neither the time nor the stamina for all-night sessions. Offer them a fixed block that fits their work schedule. Many players retire because they have had some bad experiences. Offer them some good ones.
• Respect Current Players - One of the big secrets of good games is that you don't need to like the people you are playing with. They might have traits you dislike in and out of game. But you have to respect them. Call it professionalism or sportsmanship, treating players with respect prevents some of the worst experiences of roleplaying. Give each other the benefit of a doubt, roleplaying is rich enough that you can always disagree, without someone needing to be wrong.

Good play experiences makes better players. Playing with good players can make better players. When you help make roleplayers you want to game with, you make it more likely to find one when you need one. And the more of us who pitch in, the better things will get. Remember, think globally, act locally.