Have you ever told somebody dessert was on you to try and get a future show out of them or anything like that?
I would highly suggest NEVER doing this. Buying dessert for a table is actually more likely to do the opposite than what you want. It lowers your social value big time. It seems like your just doing a nice thing, but people truly look down on that, especially if they can sense that you are looking for something in return (and they will sense your intentions no matter if its talked about or not).
It's like buying a woman you don't know a drink when your out. Soooooo many guys think that's the way to talk to a woman but it is actually the opposite. It's a great way to have an attractive woman maybe engage in some small talk with you then immediately kick you to the curb. Why? Because you've haven't proven your social worth to them at all. You don't look like a person of self-confidence, of pride in yourself, or that you consider yourself worthy or "same level" as others. And so, what you may think is kind act or gesture, immediately causes you to lose face and value.
You never want to approach your magic like a door to door salesman, i.e: "Hey do I got a deal for you!" You never want to appear to be begging, or in need of work. Instead, you should always strive to be fun, easy going, and worth something. Instead of presenting the image, "I need a gig please hire me," instead work on the image of "I'm in demand, and you want me. You need me."
Think about it. How many people who try to sell things by offering you something (like door to door sales or phone solicitors) get hung up on or a door in the face, and usually pretty immediately. There's something about that sales tactic that shuts people down. Now think about companies like Louis Vuitton, Gucci, etc. Super wealthy and popular companies that you'd be hard pressed to even see a commercial for! That's because products like that have spent a tremendous amount of time working
on their image to the point that THEY are in demand. And because of that demand, the name immediate is extremely valuable. You want to be in demand, and always carrying yourself as if you are is crucial to success. You are Louis Vuitton... your not going to buy something for someone else! No way! They are going to buy from you, and by the end be begging for more!
Far too many magicians lose their social value before they even get a chance to show off the good stuff they've got. And in this business, your social value counts for so much more than your technical proficiency as far as making the first impression needed to get the gig.
The lesson: Never buy your potential clients anything as a way to entice them to hire you. And never buy a woman a drink who hasn't first earned that respect, (and knows she's got to earn it).