It's human to imitate, but we are also uniquely individual. If it helps you, then what better role model than the Gurus? Humility is not something you can 'act'. Humility happens inside of you when you experience the Infinity inside of yourself. Our Gurus are with us now. They weren't just in the past. Their qualities are inside of us already. Don't 'act' like the Guru, and don't 'act' humble, just act in yourself in each moment to the best of your consciousness.