The greatest way to show a girl you like her is to be genuine, kind, and attentive. Show interest in her thoughts, feelings, and experiences. Be a good listener and make an effort to understand her perspective. Compliment her, make her laugh, and spend quality time together. Show her that you care about her well-being and happiness. Ultimately, the best way to show a girl you like her is to be yourself and let your actions speak louder than words.