How about this: You probably get business owners making transactions--ask them how their day is, then if they complain about something, dig into the problem & see if it's something that might lend itself to being solved via software. You don't want to pitch them anything--just gather data about problems.
The reason I mentioned focusing on business owners is that they're likely be willing to pay for someone to solve their problems.
The reason I mentioned focusing on business owners is that they're likely be willing to pay for someone to solve their problems.