One way is to work out when the most profitable periods of the game is for certain markets and it's important to study past game scenarios to understand when these occur.
I've taken the English Premiership game that occurred just over a week ago as an example between Swansea and Wigan. The game was evenly priced and not one that I would normally get involve in, particularly early on. The home win price at kick-off was 2.06 with prices of 3.6 and 4.3 for the draw and away win respectively.