Express your ideas freely on monday. The response you get could be surprising, especially if you're standing up for what you believe. Avoid the gossip around the office on tuesday and wednesday. Your time is better spent making sure all your t's are crossed and i's are dotted. Working in a group is definitely favored on thursday and friday. What you can accomplish in conjunction with others involves far bigger payoffs than individual projects. Keep your plans for the weekend flexible, because you might be called on for a big opportunity.