Multimodal interfaces offer users unprecedented flexibility in choosing a style of interaction. However, users are frequently unaware of or forget shorter or more effective multimodal or pen-based commands. This paper describes a working help system that leverages the capabilities of a multimodal interface in order to provide targeted, unobtrusive, context-sensitive help. This Multimodal Help System guides the user to the most effective way to specify a request, providing transferable knowledge that can be used in future requests without repeatedly invoking the help system.