Tricky day ahead, not confident at all. How i normally approach a feeling like this if must have an interest in the game is by managing risk/searching for value so i would play it like follows: 
As game's are a few hour's apart it is fine to bet on a game by game basis and just play the odd's.   
15% of the days soccer bankroll on JAPAN if they win bank 20% of the dividend and play up the rest 50/50 split for the other 2 games. If they lose then throw 25% of the day's money on 
Senegal or Draw whatever your choice.   If this game win's then bank the original day's bankroll and play up the rest for the remaining game or you can bank a little profit either way not a great deal- this will then enable basically a free hit at a nice day's profits going into the last game> If the first two bet's have lost you will need to back Egypt with whatever % of your day's money you feel like to cover the first two bet's +  how much profit you'd be happy with. 
Today in my opinion is not about tipping as too many unknowns it is more about playing the odd's & some bet management in which i will go into more depth about in the future.