Chip's got the right attitude, bit different to Wayne Cambell's analogy in Wayne's World, but the point is the same

If she's liked you for 3 years, there's a good chance head on the 1st date won't be pushing your luck, treat her with some respect, take her for a nice meal and such, few drinks and such, cinema's more for a 2nd date I reckon.

Gotta test the water before diving in so to speak