The DirectCam Boost button allows you to place bids to improve the position in which your profile appears in DirectCam.
Once you click the button, you will see a countdown showing how long is left until the next period starts. (Each period/slot is 1 hour)
You may select the number of credits you wish to bid and below it, you will see a bar showing the strength of your bid.
Once you have selected the amount you wish to bid, click on "Bid to Boost" to place your bid.
Additionally, you may bid for future slots by clicking on "Bid for future slots".
For more information regarding DirectCam Positioning and how to bid for future slots, please visit the article below:
How does DirectCam positioning work?