Before you can add or edit content, you usually need to log in. If you haven't already done so, register as a user, see above (or, if applicable, request that your site administrator register you). Then hit the main page of the site you're wishing to use and look for a "User login" form. This will typically be on the left or right side of the page (it is a "block" in Drupal talk). Enter your user name and password and hit "submit".
Assuming everything's working as planned, when the new page loads it will include a new block with your user name at the top. This is the menu you use to start entering and editing content.
Before you can add or edit content, you usually need to log in. If you haven't already done so, register as a user, see above (or, if applicable, request that your site administrator register you). Then hit the main page of the site you're wishing to use and look for a "User login" form. This will typically be on the left or right side of the page (it is a "block" in Drupal talk). Enter your user name and password and hit "submit".
Assuming everything's working as planned, when the new page loads it will include a new block with your user name at the top. This is the menu you use to start entering and editing content.
Once you have registered with a Drupal-based site, you can change settings to control information about yourself and also your use and experience of a Drupal site. To see what tweaks you can make to your account, log in and then click on my account in the navigation block (that's the one titled with your user name). Click on the edit tab.
Account Settings. You may see a different collection of settings than is presented here, depending on what features have been enabled on your site.
password Enter in a new password in both fields to set it. Drupal sends you a default password that is often hard to remember, so it is recommended that you change your password to something you can easily remember. block configuration The site administrator may make some blocks (chunks of content that are usually displayed in a left and/or right column) optional. You can enable and disable the display of these blocks by checking and unchecking the boxes next to them. signature If comments are enabled, you will be able to set a default signature. This will be copied into new comments for you automatically, but may still be edited. time zone Your site administrator may allow users to set their time zone. This will cause all dated content on the site to display in local time, according to the offset you enter here. theme A "theme" is the basic look and feel of a Drupal site. Sometimes a particular site will have more than one theme installed. If the site administrator has made more than one theme available, you will be able to select what you would like the default theme to be for your account.As mentioned earlier, different site-settings will cause different fields to bed displayed on your user account page. See the documentation for individual modules for instructions on how to use these additional options.
Additional Information. Aside from the account settings tab, you may also see additional tabs, titled according to the information they contain. Some examples might include "Personal Information", "Workplace", etc. These are controlled by the profile module, and allows you to enter more information about yourself. Please see the profile module for more information on this.
To edit or delete existing content, log in and then bring up the page you wish to edit. Look on the page for an "edit" tab. Depending on your user permissions, you might see this on all pages or only on certain ones (e.g., those that you yourself submitted).
Clicking the edit tab will bring up a page with a form for changing the page. Here you can change the text and settings. Once you have the text and settings in a suitable form, click on the "Submit" button on the bottom of the form. Note that certain sites may be set up to require you to "Preview" the page before you can submit your changes.
If you wish to delete the page (and you have appropriate permissions), click on the "delete" button near the bottom of the form. You'll get a second chance to confirm that you wish to delete the page--or to change your mind!
Note: Because Drupal is very configurable, there may be additional ways of editing and managing content. Please check the documentation for your installation, ask the Drupal administrator, or consult with another user for details.