If you sign up with a new sportsbook, you’ll usually get a welcome bonus that includes bonus cash or free bets to use however you like. These welcome bonuses only require you to create a brand new account with the sportsbook and don’t need any deposits to obtain.Sometimes, a bookmaker may offer new and existing customers free bets when there’s a particularly popular upcoming match, such as the Super Bowl. Other times, there may be a promotion where you get free bets if you wager a certain amount on a particular league, such as an NFL week.