1. Take a listen to the reverb. There's a lot of it on the vocal (which you don't hear in the mix), and it's pretty short and delayed. Reader Bruce Coffman wrote in that it sounds a lot like a gated reverb from a Lexicon 224 with the diffusion maxed out to give it a sort of cloud at the end, hence the name "cloud delay."
2. Most of the song has the lead vocal doubled. The exceptions are in the beginning of the first verse and the ad libs on the outro.
3. The double is pretty close but not perfect. In fact, on some phrases one of the parts is dipped out, presumably because of the performance. Don't forget this song was recording in 1981 in the days before DAWs so you'd be lucky to get one perfect performance, let alone two.
4. Listen to the "Don't tell me" section of the pre-chorus. It's dry and spread out left and right, where the other doubles are up the center.
----------------------------------
