For @Aginor, “Time out” in baseball is a weird thing since a baseball game as no time limit…the team with the most runs after the 9th inning wins. I am pretty sure that any player in the field (defense) can call a time out. Base runners? I would think if he has a base running reason like tying his shoe.
I’ve seen catchers call time to go talk to the pitcher on the mound.
And managers (the old looking guys that are in a baseball uniform but rarely come out of the dugout) can call time, usually to replace a pitcher.
That last is an interesting evolution that is not in the rule book. The manager calls time out. There is a place for each team, adjacent to the field that is called the Bullpen. Essentially just a long narrow area where pitchers can warm up while the game is in progress.
If, after calling time out and while walking to the pitcher’s mound, the manager looks over his bull pen and points to his left arm, that means he wants a left handed pitcher as a replacement (aka a “south paw”…no, right handed pitchers are not known as “north paws”, the are creatively know as …um…right handed pitchers)
The manager gets to the mound and starts talking to the pitcher–many times the catcher also comes out to the mound. The pitcher is most likely holding the ball. So, while you cannot hear what they are saying out there, you keep your eye on the ball. If the pitcher gives the ball to the manager, that means he is being relieved. The manager then passes the ball to the relief pitcher, and usually jogs off the field (remember, they are usually old guys). Play continues when the Umpire signals it.