Summarize:

You are going to generate the most income during the warm summer months when everyone is more likely to be outside and wanting ice cream. Though you can stay open during colder months, you will likely make less money. Plan the opening for the start of summer so you can capitalize on the weather and have as many customers at the truck as possible. If you live in a very warm climate, you may be able to make money year round. It may matter less if you open in the summer or in the winter, especially if the weather is sunny and warm all the time. Focus on a neighborhood or area that has a lot of foot traffic and is densely populated. You may begin in your neighborhood and drive around to other neighborhoods close by. Or you may go to a local plaza or outdoor area that usually has a lot of foot traffic. Stick to a regular route, as this will help customers know where you are and make it easier for them to buy from you again. Make an effort to connect with people in a neighborhood or community. This will encourage them to buy from you again and help your truck become known by word of mouth. Set up social media accounts for the ice cream truck, such as Instagram, Twitter, Snapchat, and Facebook. Follow other local businesses in the area and post updates to your followers on a regular basis. You can also send out information on the location of the truck to followers so they can find it easily.  Maintain an active social media presence so customers stay interested and engaged with the ice cream truck. If you have any specials or promotions at the truck, make sure you let your social media followers know. Pay attention to what products are selling and keep track of this on a spreadsheet. Then, adjust what you are selling so you only offer people what they want.  For example, you may notice certain ice cream flavors are more popular than others, or that people prefer ice cream bars over ice cream cones. You may try adding new or interesting flavors to the list of options to draw customers in. You can also offer a weekly ice cream special to encourage customers to try new products.
Open during the summer season. Establish a route in a neighborhood or area. Use social media to promote the truck. Adjust your ice cream products based on demand.