If there's nobody in front of me i'm in top gear, if there's traffic i'm in first/second gear, anything in between gets me away from BMW drivers! :lol
Use your ears, it's the greatest indicator ever, and prevents you taking your eyes off the muppet in front of you who's texting, eating an apple and smoking a fag, with 'L' plates on!
More people are born because of alcohol than will ever die from it.