By not having a huge spike in volume on a new account, providing information about the business to PayPal at some point, and by having a track record of low risk. It's not a problem to open a PayPal account and start accepting payments, it's only a problem to do that, not have any verified information in your account yet, then also do something to raise red flags. And for most people, even when that happens, once you give PayPal enough info to convince them you're not doing something shady, they'll unfreeze the account and you take payments without a problem for years after.