Attitude. Obviously, it's important for a mentor to be welcoming and open to questions. But also, there must not be any noticeable frustration on mentor's part, like when I don't know something or I didn't got it the first time. It's the little things - like reacting by not reacting. Mentor must be excited to show me something, or to go deeper with their explanation. Otherwise I might be afraid of not knowing.
Reacting by not reacting:
Follow a tried skill-acquisition techniques
Path to mastery has been studied for quite some time by the eastern philosophy. Look at shuhari or a more 'formalized' model like the Dreyfus squared. Dan North gave a great talk about this.
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Without being too specific:
Reacting by not reacting:
Path to mastery has been studied for quite some time by the eastern philosophy. Look at shuhari or a more 'formalized' model like the Dreyfus squared. Dan North gave a great talk about this.