To ensure a smooth check-in at the MGM Grand, arrive with your reservation details handy, including confirmation numbers and identification. Consider checking in online to save time. If you’re part of a loyalty program, mention it for potential upgrades. Arriving during off-peak hours, typically mid-afternoon, can help you avoid long lines. Be polite and patient with the front desk staff, as they can assist with special requests. Lastly, familiarize yourself with hotel amenities to make the most of your stay.