Okay, so there is this tumblr setting where your likes can be seen by other people.People can see your likes by typing “https://www.tumblr.com/liked/by/[user name]”.This setting is automatically turned on by tumblr. Most people don’t want this to happen. So how would you turn off this setting?
Go to Setting->Dashboard
Then you should see this:
See that read circled part? Yeah, turn that off and nobody should see your likes now! Now you don’t have to worry about people knowing what you have liked (because I’m pretty sure that most of you would like to keep that private). So now you are free to like whatever post you want without worrying about what other people think! Have fun!