What is the best way to determine someone's age on a date?

Determining someone's age on a date without asking directly might involve observing a combination of visual cues, conversational topics, and general knowledge. Visual cues can include their appearance, such as signs of aging or their fashion sense which can sometimes correlate with certain generational trends. Conversational topics could give insights into their cultural references or life experiences that align with people of a certain age group. Additionally, one could consider their knowledge about technology, current events, or historical moments most poignant to specific age ranges. However, these methods come with significant risks of inaccuracy and assumption. The most respectful and effective way to learn someone's age is simply through open and honest communication, asking them directly if the context seems appropriate or gauging their comfort level on the subject before proceeding.