How to attract paying customers: Try saying "Hello!"
I was just in Rome, Italy. Intrigued by some attractive handbags, my friends and I walked into a leather shop, looked at merchandise, and the clerk (or owner?) just kept reading his paper. No greeting. Nothing. We walked out.
Later, seeking lunch, we looked at a menu outside a tiny restaurant on a side street. The owner came out and said, "Buongiorno!" He invited us in, and we followed him. Then, he even suggested what we should eat. He closed the sale.
Great lessons learned!