Do I call them....?

So um... today three guys approached me.... and they gave me their numbers. One was an older dude who I have a feeling might have a wife and kids.... One was a construction worker and one was a man who saw that construction worker giving me his number (and everyone was a staring.... THIS AIN'T NO FREE SHOW! NYC people are so weird) so he asked for it as well.... So um... I mean I wasn't too ecstatic with them but I don't hate them either.... I didn't feel any spark or anything with any of them.... I think one seems nice and not sure, so do I call them? If so, when.... Or is it a bad idea?