The 'describe' groupThese verbs are concerned with showing or telling someone how to do something. The Subject is usually a person or something that has been written, but in the case of indicate, it may also be a set of facts, a research study, or an experiment.
With most of the verbs in this group the to-infinitive is most frequently introduced by how.
advise demonstrate describe explain illustrate indicate instruct reveal say show specify suggest
The book describes how to set up a self-help group.
Medical studies can never prove causation but can only indicate where to look for the real cause.
Are your cosmetics past their sell-by date? We reveal how to make them last longer.
Some American reviewers have criticised him for failing to suggest how to govern a modern society without a belief in progress.