Collect hidden Bobbleheads in the corresponding locations to add +10 skill or +1 stat:
STAT - LOCATION Agility - Greener pastures disposal, in the office Charisma - Vault 108, in the cloning lab Endurance - Deathclaw sanctuary entrance Intelligence - Rivet city, on table in the science lab Luck - Arlington cemetery north, in the basement below the stairs in the arlington house Perception - Republic of dave, on a bookshelf in the museum of dave Strength - Megaton, in lucas simms house
SKILL - LOCATION Barter: Evergreen mills - market bazaar Big Guns: Fort constantine - CO quarters Energy Weapons - Ravenhold Explosives: WKML broadcast station - sealed cistern Lockpick: Bethesda - Bethesda offices east Medicine: Vault 101 - Dad's desk Melee Weapons: Dunwich building - virulent underchambers Repair: Aerefu - Evan kings house Science: Vault 106 - Living quarters Small Guns: National guard depot - National guard armory Sneak: Yao guai tunnels - Yao guai den Speech: Paradise falls - Euology's pad Unarmed: Rockopolis - Head directly west from casey smith's garage, look for tattered banners strung up