If you're interested in learning more about smoking and inhaling techniques, consider consulting reputable sources, such as:
She teaches the beginner the "Two-Step Direct Inhale," a technique often used by cannabis and legal herbal vape users, which is the gentlest entry point. If you're interested in learning more about smoking
Chest breathing (clavicular breathing) is shallow and irritates the upper bronchial tubes. Abdominal or lateral rib breathing is deeper, slower, and smoother. By expanding the ribs outward, you create negative pressure that gently vacuums the smoke into the lower lobes of the lungs, where the cough reflex is less sensitive. consider consulting reputable sources
Marta teaches the "Three-Part Exhale":