[Two pictures. Top picture shows a screencap of a youtube video titled “how to drink water” with a 1.7m views. The picture below is a drawn figure (gintoki from gintama) not opening his mouth as he is pouring water on his face. Text on image says “1.7m people before this video”]
Gintama anime physics is unrealistic, with that kind of glass with no lip it usually clings to the side and slides down to the bottom corner instead of water falling off at the top corner.