If you mean you want to add the proper code to your page so that when people click on a link, such as the word "Email" or a graphic symbol, and it will start their email program with your email address displayed in the send to field, do a search on Google for "mailto" or check out this instructional site:
Also do a Google for: mailto spammers. Spammers will harvest webpages for email addresses, so be mindful and choose an email address (name@) that you could deactivate if a problem develops. Don't choose your best name.