“Look at this cool thing I found!” It can just be nice to share stuff with other people. There doesn’t need to be a deeper reason, it’s a function of humans being social animals.
This includes motivations such as wanting to discuss the thing with other people, to compare your own view with theirs, or simply to satisfy the need to yell at someone.
Edit: typo
The usual, really. Get a nice buzz going on coke and rum, draw, build whatever’s behind door 24 in the Bluebrixx Star Trek advent calendar, make the husband watch Richard II and Hamlet (maybe even Much Ado About Nothing) with me, rewatch Severance season 1, watch a bunch of bad movies. Mostly watch stuff, basically.