I think certainly curiosity is key. Being open minded comes close second, you need to let the results speak to you and be open to the possibility that your assumptions are wrong. Science teaches you to be humble!
I agree with Francesca! Curiosity and open mindedness are very important. Another aspect that’s important is perseverance. Often things won’t turn out how you want or expect them to and you shouldn’t take that personally!
The philosopher and scientist Voltaire said: “No problem can withstand the assault of sustained thought”