1. Do you have... ? 2. Where can I find... ? 3. I'm just browsing. (browsing = looking casually) 4. I'm looking for... 5. How much is this? 6. Is this on sale? 7. Can I try it on? (use this to ask if you can put on clothing to see if it's the right size) 8. I'll take it! 9. Do you take credit cards? 10. I'd like to return/exchange this.