CALICO: turn onto the first row
To trace CALICO, start on C at row 2, column 2. Move left to A at row 2, column 1, then up to L at row 1, column 1. Continue right through I at row 1, column 2, C at row 1, column 3, and O at row 1, column 4. Read the selected letters as C, A, L, I, C, O.
Separate the opening left-and-up movement from the three rightward steps that finish the word. That makes three straight segments and two turns across two rows and four columns. Check that the second C comes after I; it is a separate cell from the opening C. These six selections begin the coverage count, leaving 24 open cells for the other four words.