i don't really care if my next gf really likes baseball or not, just that she accepts the fact that i do. i'm a big hiker, and the few girls i've dated, i've taken on overnights. it's not as much to see if they like hiking, too, but to see if they whine and complain about everything (hills, spiders, mice, weather) or if they make the effort to try to enjoy what I enjoy. (i'm totally fine if she freaks out from seeing a mouse, but not to the point of it ruining our trip).