Skyline painting help!
 

I know these questions are very common but please don't get mad at me. Many of you did with my first post. Anyway, when you are about to paint do you guys mask everything or just the windows? Also, what kind of tape will not let paint leak through? And if you pop off the headlights and taillights, do they fit tightly back on? Do you just mask the grilles or repaint them??

Thanks