Strolling down the historic streets of Burgos, Carlos and María Angeles (who goes by Angeles) tell us about their local nightspots. Pubs, they say, manage to circumvent local laws and keep customers through the night -- until about 8 AM -- by briefly closing and then opening again. Angeles explains:
Sí, son trucos. Pequeños truquitos de la picaresca española....
"Yes, they are tricks. Little tricks of the Spaniard craftiness...."
[Caption 54, Burgos - Caminando]
Trucos are "tricks." And, as we've explained before (scroll down), the ending -ito is diminutive, so truquitos are "little tricks." Saying pequeños truquitos is merely repetitive, for effect. It emphasizes that we're talking about "little, harmless tricks." Also: note that truquitos is spelled here with a 'qu' to preserve the hard 'c' sound in Spanish (like 'k' in English).
A related word in the quote above is the adjective picaresca, which means "rascally" or "picaresque" in the literary sense. Remember, picaresque literature was founded in Spain, "flourished in the 17th and 18th centuries in Europe and continues to influence modern literature," according to Wikipedia's entry (in English) on the subject. The genre usually features the adventures of a roguish hero (un pícaro), living by his wits. You might note that Angeles -a Spanish history fan herself- utters the term picaresca with a giggle and a knowing appreciation of the form.