First you have to understand what you want to do, what you can do, that is, what you sell, what are the characteristics of your things, good in which, this is also your most fundamental question, because this is directly related to the interests of your customers. Then there is your food truck how to build, which you also have to think about, how to attract people, which requires you to seriously consider the issue. Then there is the location, to lock your target audience. Food trucks, you should choose the shopping malls, where the flow of people is larger, this is the second problem you have to consider in what place to sell. The third question is: to whom to sell? This is your target audience. Your things are more in line with which people eat, what are their characteristics, how much spending power, consumption purposes and so on. Anyway, you have to pay attention to too much. Here also say so much, I hope you succeed.