If it’s lined, the side dots will be like on a fretted bass, just to get you in the area of where you should be, the lines are your target points (will come to rely on them less and less as time goes on - FWIW other lined players include Gary Willis and, of course, Jaco).
As has been said above, once you’ve done the initial obligatory slipping, sliding and OTT mwah (plus the Pino ‘Hat’ line), just play the songs you normally would as if you’re playing fretted. You probably already slide into a few notes and add vibrato on fretted anyway, it will now just sound more organic. Soon, you’ll just instinctively know where those little fretless touches sound best.
Enjoy the ride, it’s a lot less bumpy.