A speaker is preparing to travel to Vilnius to present at the Big Data Strategy conference, where they will discuss the evolution of NoSQL query methods, tracing their development from 1960s hierarchical databases to the modern N1QL, which integrates SQL with NoSQL's flexible JSON format. The speaker enjoys introducing N1QL to developers due to its combination of SQL's familiarity and JSON's adaptability, and they are looking forward to experiencing Lithuania for the first time. They invite attendees of the event to connect with them during the conference.