Lockpick (Fallout: New Vegas)

Lockpick is a skill in Fallout: New Vegas. Its functionality was replaced by the Locksmith perk in Fallout 4 and the Picklock perk

This skill determines the difficulty of locks the player is able to pick.

Initial level

 * $$\text{Initial level}=2+(2\times\text{Perception})+\left\lceil\frac{\text{Luck}}{2}\right\rceil$$

Example: A starting Perception of 5 and Luck of 5.
 * $$2+(2\times5)+\left\lceil\frac{5}{2}\right\rceil=14.5$$

Description
Lockpick in Fallout: New Vegas operates in much the same way as Fallout 3, with the Lockpick skill determining which locks the game will allow the lockpicker to attempt picking. Their skill must, again, be at least the lock rating to try, and locks are rated at 25% increments: Very Easy - 0%, Easy - 25%, Average - 50%, Hard - 75% and Very Hard - 100%. With the prerequisite skill, picking a lock takes the form of a mini game (see Lock for details).

Ways to increase Lockpick

 * Permanent
 * Leveling up (10 + half of INT + 2 with Educated perk)
 * Tumblers Today (+3 or +4 with Comprehension)
 * Optics Enhancer (+2 depending on Perception, a perfect Perception of 10 will see no benefit.)
 * Tag! (+15)
 * Skilled (+5)
 * Temporary
 * Locksmith's Reader (+10 or +20 with Comprehension)
 * Absinthe (up to +6 with 100 Survival, a perfect Perception of 10 will see no benefit.)
 * Coyote tobacco chew (+2 depending on Perception, a perfect Perception of 10 will see no benefit.)
 * Mentats (+2-4 depending on Perception, a perfect Perception of 10 will see no benefit.)
 * Party Time Mentats (+2-4 depending on Perception, a perfect Perception of 10 will see no benefit.)
 * Most hats (+2 depending on Perception, a perfect Perception of 10 will see no benefit.)
 * Vault 3 utility jumpsuit (+5)
 * Advanced riot gear helmet (+2-4 depending on Perception, a perfect Perception of 10 will see no benefit.)
 * Marked patrol armor (+2 depending on Perception, a perfect Perception of 10 will see no benefit.)

Interactions that require Lockpick skill

 * 35 Lockpick is needed to persuade God to follow the Courier.
 * 50 Lockpick is required to unlock the truck door at Cottonwood overlook during the quest Eye for an Eye.
 * 75 Lockpick is required to persuade Elijah to come down to the Sierra Madre vault.