吸引 (xī yǐn) is the most general and neutral verb for 'to attract' — it can be used for people, attention, customers, etc., without any special connotation. In contrast, 引 (yǐn) is more formal and often used for drawing attention or interest in a literary sense, while 招 (zhāo) can imply attracting something negative (like trouble) or is used for recruiting. 诱惑 (yòu huò) is stronger, meaning 'to tempt or lure'.