1. Go in for a hug or a handshake.
Like most Europeans, Spaniards favor a bi-cheekal* kiss greeting. Go in for a hug or handshake at the wrong time and you’ll likely end up accidentally grazing someone’s crotch with your outstretched hand or hugging their pouting lips in a peculiar headlock.
2. Go barefoot anywhere.
Spaniards have an aversion to bare feet. Even in their own homes, Spaniards wear slippers, so don’t even try to traipse around the pool at the gym without flip flops on!