Special Characters on MAC
Unicode Hex Input
You can key unicode hex input directly into any application in Mac OS X.
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Andd
Unicode Hex Inputin your keyboard input sources.Under the Apple menu (at the left of the menu bar), choose System Preferences…, then choose Keyboard. Make sure there’s a check in the box to the left of “Show Keyboard & Character Viewers in menu bar”: This will display a flag (or flag-like) icon near the right-hand end of your menubar. Then choose Input Sources… to access the preferences for Language & Text. Near the bottom of the (long) scrolling list, place a check next to
Unicode Hex Input, and at the bottom right, make sure there’s a check next to “Show Input menu in menu bar.” - 
    
Choosing the Unicode Hex Input method alters the behavior of the “Option” key. To place U+03B1 into your document, hold down the Option key and – while holding it down – tap the four keys 0, 3, b, and 1 in sequence. On pressing the last of the four, the character α appears; you can then release the option key.
 
| Char | Hex Code | Name | 
|---|---|---|
| ✓ | 2713 | Check mark | 
| ✔ | 2714 | Heavy check mark | 
| ✕ | 2715 | Cross mark | 
| ✖ | 2716 | Heavy cross mark | 
| ✗ | 2717 | Ballot | 
| ✘ | 2718 | Heavy ballot | 
| □ | 25A1 | White square | 
| ☑ | 2611 | Checked white square | 
| ☒ | 2612 | Crossed white square | 
| ␣ | 2423 | open box to indicate visible spaces, keystrokes | 
Character View
Use Character Viewer to choose from a list of pre-mapped special characters on Mac keyboard.
Click in the text where you want to place the character, then choose Edit > Emoji & Symbols (or press Control-Command-Space bar).
To locate a character, do any of the following:
- Scroll to see more characters, or click the buttons at the bottom to jump to a category.
 - Scroll up, then type in the search field at the top (for example, type “fractions” to see available fractions, or type the Unicode name or code).
 - Scroll up, then click the button in the top-right corner to open the full Character Viewer.
 
Checkbox: type “ballot” into the search field. You may choose unchecked/checked boxes as need.
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☑/☒ checked
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☐ unchecked
 
Commonly used characters
https://mackeeper.com/blog/special-characters-mac-keyboard/
Need to be in English Keyboard.
| Character | Name | Keyboard combination | 
|---|---|---|
| • | bullet list | opt + 8 | 
| ° | degree | opt + shift + 8 |