Use a brush pen with a flexible tip, not a rigid felt-tip marker, since brush lettering's signature thick-and-thin contrast comes entirely from how much pressure bends the flexible tip, and a stiff nib can't produce that variation no matter how you angle it. Press down firmly on downstrokes and lift to a light touch on upstrokes, since this basic pressure rule is what creates every letterform in the style, and reversing it by accident is the most common beginner mistake. Practice basic strokes, like straight lines, curves, and ovals, before attempting full letters, since every letterform in brush lettering is built from a small set of repeated basic strokes, and skipping this drilling stage makes inconsistent letters much harder to fix later. Warm up for a few minutes before each session, since cold, stiff hands produce shaky, uneven strokes, and a warm-up of loose scribbles and basic strokes noticeably improves control once you start on real words. Work on lined or gridded paper while you're learning, since consistent letter height and baseline alignment are hard to judge by eye alone, and guides let you catch sizing problems immediately instead of after finishing a whole word. Rotate the paper rather than contorting your wrist to change stroke angles, since a natural, relaxed wrist position produces smoother strokes than forcing awkward hand angles to compensate for a fixed paper position.