Humour, Humility, Respect
There is no set job description as an early-stage founder.You have to work in sales, tech, accounting, compliance - you have to make a brew and sweep the floor. Stay humble, respect everybody and remember, always listen & learn.
Never a Stupid Question
Challenge the status quo, ask when you don't understand - don't pretend to know everything (nobody does!). Long term partnerships are based on trust and friendship. Lessons come from all angles.
Always Thinking Forward
Technology has never been as accessible. You must be on the pulse with the latest developments above and beyond your own sector to stay ahead. Read Widely, challenge openly and have fun while doing it.