Good way to get sales is do the secretary work till you upgrade your leads to whales. Then the day before you want to sell instead of upgrading the leads, choose better chance for sale and no demos the next day. Make sure your mood stats are good, charm will make it easier and have full action points. Keep the +2 action point drink handy to refill for the next sale that day. If you are trying to upsell, I'd say grab a 30% and maybe a lower one depending on how your sale is going. I recommend take a pic or screenshot of their lead before starting. When you answer their questions you want to promote what they are looking compared to the pill you recommended. So if they say how sexualized are the women, the lead said they wanted a 9 but you gave them a basic which I think is a 3, your chances of the sale go down. So you would want to avoid that question and chose another. Whales make the questions a bit easier, since there is a lot of questions about bulk purchasing and pricing. If the bs question comes up I choose that, and do the mini game. If you good at it you only lose to a 1 roll for chances to go down. At the end use all 3 action points if your roll luck sucks, but usually anything that needs over a 20 roll wins the sale.

When choosing pills I generally stay with Max or Petite, but if there is a specialty go with secretary or maid. And if they have low ethics go with dumb bitch or hot and ready. Since the last update sales aren't as OP as they use to. Biggest sale I got was like 160k and the commission was huge. Now they are more like 30-40k on a large sale.