This command works the same way as the /ison command although it will notify you if the user appears or goes away until the person is removed from your watch list. You can input up to 5 names or rooms into each watch command. You can send multiple watch commands. This command will allow you to see a user connect/disconnect from the network. If you are watching a room, it will tell you when the room empties or has a user join after it was empty.
+<nick|room> Add nick(s) to the watch list
-<nick|room> Remove nick(s) from the watch list
c - Clear the watch list
s - Show your watch list and how many watch lists your nick is on
l - Show who on our watch list is online
L - Show the watch list, indicating which users are online and which are offline
/watch +JoelKatz +WebMaster +Samurai +#Spiderslair
Watch is designed to let you know when the things that interest you are online. It works much like the buddy command, although you have to set it each time you log into the network. It also does not require the authorization of the people you want to add.