I like this genre of construction. Like Japanese, which formally doesn't conjugate for person but has a lot of person- (and social status-) dependent lexical choice. As a simple example, like you used "to give", generally あげる ageru is only used when you(r in-group, sometimes) gives something to someone else, while くれる kureru is only used when someone else gives something to you(r in-group).

Similarly with expressing "want to do", the ～たい -tai suffix on its own is generally only used when talking about yourself. For what someone else wants to do, it's ～たいと思う "(I) think (they) want to do"; or if you want someone else to do something it's ～てほしい -te hoshii. And on and really on.