So my go to first date is usually something casual like getting icecream/coffee/bubble tea and going for a walk nearby (all in all takes about 30 min). However these "dates" are usually pretty short. Anyone have any ideas how to extend a first date if a girl is clearly into me and I want to keep spending time with her?

(I just graduated university and moved back in with my parents so I could study for the MCAT, because of this doing something back at "my place" isn't the best option)