There usually has to be some sort of romance involved for me to pick up a book. Anything with a strong emotional undercurrent is bound to get my attention. Contemporary, PNR, H/C & M/M are my favorites.
5 stars: Outstanding; Run & get it right now!
4 stars: Loved it; well worth the read.
3 stars: Liked it; it's a safe bet, but nothing earth shattering
2 stars: Meh, it was okay. I'd get it on sale if you're going to give it a try.
1 star: Didn't like it; Read at your own peril. ;)