Depends on the operating syystem your laptop is running.
For Windows, "Richard J" is correct - though soliciting for "best answer" is not exactly appropriate... and Richard J neglected other operating systems.
For macOS X, in the upper right corner of the monitor, there is a flag (If you are in the US using American English, it will be an American flag). Click on that flag.
If you select "Show Emoji & Symbols", then a window will appear which allows you to select the type of special character you want from your keyboard.
If you select "Show keyboard viewer", a keyboard will appear on the screen - and when you press on your real keyboard, option or option-shift or option-control or whatever, you'll see the characters on the keyboard displayed on the monitor change...
If you are using a different operating system, please let us know.