Syntax: take <object>
take <object> from <player|container>
get <object> from <player|container>
steal <object> from <player>
remove <object> from <container>
The first two forms pick up the named object and place it in your inventory. Sometimes the owner of the object won't allow it to be picked up for some reason.
The remaining forms move the named object from inside the named player or container (see 'help containers') into your inventory. As before, sometimes the owner of an object will not allow you to do this.