Consistency
Provide a help link on every page
Place a help link in the upper right corner of every page. This way, when users need help, they know where to find it. Make help the central place for various help tools: help text, tutorial videos, live chat, question submittal form and so on. It is best if your help pages are context sensitive and display information about the page the user was viewing when he or she clicked the help link. It is also nice to display help in a smaller popup window so the user can continue to view the rest of your website.
Use consistent design elements
Across all pages of your website use fonts and colors consistently for a uniform and professional appearance. Also strive to be consistent in the layout of pages, use of terminology or wording, and how your site allows users to interact with it.

