I want to sell shoes. I am dumb. I can't tell which kind-hearted person taught me. Why is there no one?

What's the good of teaching you ~ ~ Haha (joking) See where you sell it. Shopping malls and night markets sell different speaking skills and ways. Tell you a trick, where do you want to sell shoes, pretend to buy shoes, and then go to several stores to see what their shoe sellers say. You should pay attention to their way of speaking and opening remarks.