To become a millionaire, learn to act like one. The 10.4 million Americans with a net worth north of $1 million got there in a variety of ways: smart investing, a lucrative career, a successful small business, profitable real estate holdings, or maybe an inheritance. But those fortunate members of the seven-figure club tend to share a certain mindset that helps them build wealth (take this quiz to see if you act like a millionaire-in-the-making too). And, as you’ll see below, they have habits that you can mimic too, from getting an early start and controlling spending to keeping a long-term outlook. To join their ranks, study what they do best.