The lost dog one is good but then if u end up going out with him u'll have to actually go out and buy a pet dog (or pretend it died lol). Also, u could just ask for the time, say ur lost and ask for directions to some random place (even better if it doesn't even exist - hours of fun!), if u smoke ask for a light, drop something so he (hopefully) comes over to help pick it up - not so good that one cos everyone around u also prob will..