How to Play Full Sun

About Full Sun, from BoardGameGeek:

The shape of the forest is determined by light. Trees are so tall because the highest tree gets all the sun! But not every tree needs to win that contest. For some species, too much light can be as bad as too little. In Full Sun, tricks are sunlight. To win exactly the right number of tricks, you will have to play to the strengths of your own hand while also guessing how many tricks your fellow players are going for. Fortunately, you have an unusual piece of information at your disposal; every card's suit! Each of the five suits in the game has a unique card back, letting you see what kind of trees each player is holding. You can strategize and plan ahead with a plethora of information right away. -description from the designer