After logging in to your MacinCloud trial account, you may first explore the Applications folder in the Finder (single-click the leftmost icon in the dock) and tryout pre-installed applications.
To quickly learn how to use a Mac, please refer to any of these tips/tutorials:
- Apple's Official Tutorial - Covers Mac basics, such as using applications and setting preferences
- Appducate's 10 Tips - Covers 10 basic tips that every new Mac user should know, such as installing applications
- Anson Alexander's Video Tutorial - Covers Mac basics for current PC users, such as searching for files
- Howcast's 5 Shortcuts Video - Covers 5 helpful keyboard shortcuts on the Mac, such as switching between windows