If I had to pick one piece of start-up advice to give you, that would be it.
Regard 99.9% of what others say with a touch of suspicion.
Ask questions, have spirited conversations, and enjoy the closeness of community. People need people. But when it comes to your start-up and what you are working to accomplish, hesitate, furrow your brow, and keep commentary and well-meaning advice at arm’s length. Remember, whatever you pick up, you are bound to carry for some amount of time. It may be 10 minutes or 10 years.
It’s best to leave most of that on the landing when you step away from the coffee shop and head back to the desk.