Syntax: look
look <object>
look <object> in <container>
Show a description of something.
The first form, with no arguments, shows you the name and description of the room you're in, along with a list of the other objects that are there.
The second form lets you look at a specific object. Most objects have descriptions that may be read this way. You can look at your own description using 'look me'. You can set the description for an object or room, including yourself, with the 'describe' command (see "help describe").
The third form shows you the description of an object that is inside some other object, including objects being carried by another player.