Any Suggestions??

Hello World!!

I'm on a mission today. I've been sick for a week and I haven't typed a word. I plan on doing my part to catch up on the writing I've missed. 
However, I could use your help on another issue. In speaking with a local writer friend of mine, the subject was brought up that most first-time novelists choose to write in 1st person POV since it seems to be the easiest route for beginners. My novel, "Wallflower" is in 3rd person. Aside from a novella I wrote once, I haven't tried the 1st person angle. 
The dilemma that my writer friend and I came across is how does the writer of a 1st person work switch points of view when it is NOT the main protagonist in a scene? You can't stay on one single character throughout the book. So how do you switch?
I'm asking my readers to provide me with the title of a good book written in 1st person. I'd like to see how the pros do it. Any suggestions?