How do I change 'thanks given/received' to Likes?

I need to change it, thanks for the help!

There is a setting for this... Take a look in Configuration -> Thank you/Like System settings

I am not sure about the plugin name, since I have never used it. But this is the way to do it as far as I remember.

If there's a template in Global Template. you can edit it through there or else you should do it through root plugin file.
Which plugin you use ?

PM for Skype if you can help!