Come by anytime during the open hours, sign in at the computer with your Lone Star student ID number, and a coach will be available to help you.
Check the schedule to see the hours for each lab, you can find them online or posted at the doors.
Please bring any needed materials and assignment guidelines with you, and try to have specific content on which you want to work (the math coaches can help you with calculating the slope of a line, not simply "math").