Sure, I have some tips, but some of them are pretty general. Here they are:
Even if doing a paid app, also do some free releases - This helps people to know what to expect from your games.
Be patient - Unless one has a hit game and a lot of luck, a follower list isn't built overnight.
When promoting on forums, focus on quality of posts over quantity, and try to create lasting impressions, making friends along the way - After all, people may see your game, but they may need to know why they should play your game instead of someone else's. One good way of getting people to play your game, without telling them what to do, is talking about it in detail and in the appropriate channels, which can build interest.
Utilize the dev log function of game pages for updates - This is actually a useful tool, just make sure you aren't doing it all the time, and you're actually doing the updates when you announce something.