When your friend starts his journey as entrepreneur do you merely support him with words of encouragement or your deeds as well?
Your friend sure as hell needs money when he sets on his own.
So, if you need or want a product he's selling buy it! Heck, pay extra!
This is the biggest support you can offer.
Saddly, it's often the other way around. Friends often ask a new entrepreneur to give away his product to them for free or for a discount.
Don't be such a friend.