For others, they’ve seen so many aliens in video games, TV shows, movies, etc. that they will be blasé about it and complain that the aliens in video game X looked more realistic than the real thing.
Others will be interested for a day or two, then will move onto the next new thing on the news cycle.
Others will be so self absorbed by social media that they will only care if they can use footage to make TikTok memes.
Others will be know it all’s that will want to point out to everyone that they always said there was extra terrestrial life and everyone should acknowledge how smart they are.
Others will see this as a great opportunity to write a book in the hopes of striking it rich.
Others are just trying to scrape by and are too worn down, tired, depressed, etc. to pay any attention.
Many people live subsistent lifestyles and don’t have access to news feed to even know it happened.
I would expect exceedingly few to really give this sort of event the acknowledgement it deserves.
If they share their technology, it could allow us to leap hundreds or thousands of years in the future within decades.
It will be the single most monumental moment in human history.