Sure, here are some of the most useful 8pen keyboard gestures:

- Delete: Draw a counterclockwise circle starting from the center of the keyboard.
- Space: Draw a short horizontal line from left to right in the center of the keyboard.
- Capital letters: Draw a clockwise circle starting from the center of the keyboard.
- Numbers: Draw a straight line from the center of the keyboard to the top-right section.
- Punctuation: Draw a straight line from the center of the keyboard to the bottom-right section.
- Return/Enter: Draw a diagonal line from the center of the keyboard to the bottom-right section.
- Shift: Draw a diagonal line from the center of the keyboard to the top-right section.
- Word suggestion: Draw a line from the center of the keyboard to the letter in the suggested word.
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