One other thing nobody has mentioned yet: if you're lost, confused, or otherwise need help, don't be afraid to flag down anyone with a Southwest name-tag and ask. I've seen everyone from pilots to gate agents to mechanics help out travelers who need assistance. Employees of other airlines, airport staff, police officers, fellow travelers, and even TSA agents are other good resources for simple questions like directions to your gate. You'll be in a busy airport but don't think you'll be alone!