My idea is to not only look at the payout but at the true probability behind a game. When the actual chance of winning is higher than the odds, know that you’ve found your perfect opportunity.
Only the greeds that will concentrate on the payout percent and are usually lost out of their minds because they literally don't consider the team strengths neither do they take time analysing the game before taking a final decision.
It is also a trick of the bookmakers trying to convince us not to clearly vision or identifying the team that is to be in the most probable position to win and considering your decisions based on the odds, it could still fail you as the game of football is unpredictable unless for the notable influential clubs playing against clubs which strengths is obvious that is not strong enough to be compared with the higher teams.