The best way to bet on roulette is to focus on outside bets, such as red or black, odd or even, and high or low numbers, as they offer nearly a 50% chance of winning. This strategy minimizes risk while providing consistent, smaller payouts. Additionally, consider using a betting system like the Martingale, where you double your bet after a loss, but be cautious of table limits. Always set a budget and stick to it, ensuring that you enjoy the game responsibly without chasing losses.