Knowledge: Teachers should start to give lessons in a really interesting style to grab attention from the students. On the other hand, to begin a healthy and fit life, one must work out every day for at least 30 min and eat a balanced meal.

Conversation:
I love being physical fit and exercising. I try to keep my body toned.
That's good. Physical exercise enhances or maintains fitness and helps overall health.
I agree. It helps you be mentally fit and self confidence and a sense of happiness. I love lifting weights.
Human society has placed great value on the beauty of the human body.
I meant love lifting weights. Although not necessarily fair it's true good looks go a long way.
Well, before the Industrial Revolution, being fit meant you could get through the day without too much fatigue.
Really interesting. So where should I start from?

Response: Oh sure, to begin a healthy and fit life, one must work out every day for at least 30 min and eat a balanced meal.