Man muss schon genau hingucken, um den Fehler zu finden.

You have to look closely to find the mistake.

Man muss schon genau hingucken, um den kleinen Riss zu bemerken.

You really have to look closely to notice the small crack.

Das war so peinlich, ich konnte gar nicht richtig hingucken.

That was so embarrassing, I couldn't even really look.