Pick a lock
Definition 1 of 2
Pro Tip 1/3Special Skills
Implies using skills not known by everyone, often related to locksmithing or sometimes crime. 
The thief was able to pick the lock and steal the jewels.
Pro Tip 2/3Illegal Implications
Often associated with illegal activity, though it can be done by authorized persons, like locksmiths, in legal contexts. 
To enter the abandoned house, they had to illegally pick the lock.
Pro Tip 3/3Tense Situations
Frequently used in stories or movies to create a sense of tension or urgency. 
The protagonist had to pick the lock quickly to escape the guards.