I'd counsel caution. Simple obvious questions can be natterings about the "known unknowns". 1) Where do I order a beer? 2) Do they serve food? 3) Which tram do

I'd counsel caution. Simple obvious questions can be natterings about the "known unknowns". 1) Where do I order a beer? 2) Do they serve food? 3) Which tram do I take to get there? Progressively these three questions tell us more about the querant's location or context. But this can be quite unconscious. What about asking for summation: You've asked about beer, food and tram info, can you sum up for me what would make you happy? (Really want uncle Owen's fish and chips. Want a companion to eat with...) Simple obvious questions can also be testing for "true facts" as opposed to "documented facts", although I would expect that behavior to subside with increasing acquaintance.