A hook changes an existing word
Adding one letter to the front or back of a word can create a new word while opening space for your own play. Strong players notice hook potential before choosing where to place the original word.
Parallel plays multiply value
Playing beside an existing word can form several small cross-words at once. The move may look modest, but every valid cross-word contributes to the total score.
Check every cross-letter
A parallel placement fails if even one small cross-word is invalid. Build the move one square at a time and verify each new word before finalizing it.