There's a reason I use isabella as my name online :) My name is also
Andrea (pronounced AHN-dree-a) and no one ever gets it right. I get Andraya lots, Ahndraya, and of course the typical AND-rea. Even my husband didn't get it right for the first 2 months we were dating!
I only correct people that I like - people who will be saying my name over and over :)
Because of the pronunciation thing I am very careful about misprounouncing other people's names. My students this semester include Udodirim,
Prem,
Girish,
Farrah, Dhaval, and
Ling (who has had her name pronounced Lou-wong before...) and when first talking to them, I make certain that I am pronouncing their name as they would prefer it.