If you play through a laptop, you likely have only a trackpad and no mouse- which is the touch surface square located on the center bottom. If you play on a Macbook, then it is also likely you have a trackpad that needs set up to specifically work with the right and left clicks and no extra buttons for clicking. For making art and doing other things that require a mouse specifically, you may plug in a mouse to the laptop and *voila* problem solved. I've noticed not many people do that though. From the accessibility section way down the bottom of the tips page (https://godotwildjam.com/about/#tips ), a way around this to enable more players to play a game properly is to have a setting screen that allows the user to re-map their controls. Allowing this doesn't just help for my specific issue, but for a variety of issues, that people may have with their technology or in life in general.