Give back to the community. Become a part of it while you're at it.
I've seen people give the excuse of "but I don't have enough subscribers to give back to the community!". Well how do you expect to get that many subscribers if you don't start taking part?
You can do so much for and with your community. Here's a list of simple things to get you started:
-Read people's comics. I know this sounds silly and sort of redundant (I mean, most of us in here are comic artists). But there are some comic artists who are in it only for themselves and don't actually read comics. If you're a creator, it's so important to read comics. You expose yourself to new media and new techniques, and you can be inspired by other artists an the stories they tell.
-Comment on their comics. You can make a lot of friends on Tapastic this way, believe me. I'm still stuck in a comment string that's been going on since November 2014.
-Take part in creator contests for comics you like. Some contests are super simple and easy to enter and only require you to like an episode or tell the creator your favorite character (I'm in a contest right now where entering required us telling the creator our favorite flavor of ice cream). You might even win some nifty prizes that way too.
-If you want to support any artists through the Support program, then throw a dollar at 'em, even if it's only for a month or two (but don't throw all your money away either thinking that now they have to read your stuff just because you gave them money, because then that's just bribery >.>)
-Do guest strips/fan art. Often times the creators will show off the art in their comics and give you a shout-out for it (plus it's fun!)
-Thank the people who subscribe to you. Doesn't even have to be one of those creative "Thank you!" images, even just a simple "Thanks for subscribing!" PM can make someone's day.
-Host your own contests with prizes that you can deliver (ex. don't promise you'll give them a t-shirt if you have no actual way of giving them a t-shirt; prizes can be as simple as a shout-out on your page/comic to a free request drawing).
-Host drawing livestreams, and take part in other artists' livestreams.
-Take part in the forums. Just like the comment strings on the main site, you can make a lot of friends and learn a lot of things here.
-Help other artists when they ask for it. Give your honest feedback when they're seeking it ((don't go around giving unsolicited advice tho, some people don't appreciate that and it can come off as harsh and rude > < ) Along with this, if there's a page a creator did that you really, REALLY like, let them know and tell them why! They're working hard to give you the best damn comics they can.
There's a lot of other stuff you can do that I'm sure I'm forgetting, but that's something to get you started at least. There's a lot you can do to get your comics more exposure, but you have to be willing to put in the work. Don't expect people to come to you. Even if you only have 5 or 6 subs, you can still start now to become a part of the community, and you can still start to give back to said community. You always have to be an outsider before you can become an insider. (if that makes any sense lol)