To spell a word, the common technique involves several steps:

1. Look carefully at the word and its correct spelling.
2. Cover the word.
3. Try to write the word from memory.
4. Check your spelling against the original word.

Some general spelling tips include recognizing vowel sounds, noting common double letters (like ss, ee, tt), and being aware of irregular plurals and capitalization rules. To improve, practice by reading and writing new words often and using spelling exercises.