To be able to do that, you need a tool (which works better in Firefox) and which can do automated tools for you. This application is named iMacros. Please be sure you are logged in to your YouLikeHits account and your YouTube account.
Note: In this tutorial, we will earn point by subscribing to YouTube channels. In the next tutorials, we will make other automated tasks to earn points on Twitter, Pinterest and something else.
After downloading and installing this application, start iMacros, open the "Rec" tab, press Record and then Stop. Now, in the list above, you can see a new item named "#Current.iim", right-click and rename to "YouTube Auto-Subscribe", then right-click again and "Edit Macro", and replace the code with this:
VERSION BUILD=9030808 RECORDER=FX
SET !TIMEOUT_PAGE 120
TAG POS=1 TYPE=A ATTR=TXT:Subscribe
TAG POS=1 TYPE=A ATTR=CLASS:likebutton
TAG POS=1 TYPE=SPAN ATTR=ID:watch7-subscription-container
This macro automatically opens the default URL location for YouLikeHits YouTube Subscribing, then it presses the Subscribe button for the first channel, opens the new page, press subscribe, then opens the YouTube pop-up and press subscribe. After that, it closes the pop-up and then stops.
You can run it how many times you want. To do that in a loop, you should select the Macro in the list, then go to "Play" tab, change the "Max:" number at "Repeat Macro", and press "Play (Loop)".