If you haven't already, join the steemit chat on https://steemit.chat/. You can find all possible channels in which you can talk almost about everything. There is also postpromotion channel for promoting your posts. But most of the magic happens in general channel where you can answer to other users seeking for help.
If you want to use chat in your browser just go to https://steemit.chat/ and sign in. Simple right?
If your want to follow chat on your phone but don't want to worry about slow and difficult interface, try this. Steemit chat is powered by Rocket chat, an opensource chat platform. Therefore you will need to install Rocket chat.
https://itunes.apple.com/us/app/rocket-chat/id1148741252?mt=8
Download app and open it. Input the chat address which is in our case https://steemit.chat/ and wait for next step. Input your login credentials and you're good to go.
https://play.google.com/store/apps/details?id=chat.rocket.android
Procedure is same as for iOS so download app, input https://steemit.chat/ as chat address and login with your credentials.
https://itunes.apple.com/us/app/rocket-chat/id1086818840?mt=12
Download app, input https://steemit.chat/ as chat address and login with your credentials.
Windows app requires an installer which can be found here: https://github.com/RocketChat/Rocket.Chat.Electron/releases/download/2.7.0/rocketchat-desktop-setup-2.7.0.exe
Hopefully those tips will get you started with steemit chat!