Let words be your weapon.
Bobblehead - Speech is a Fallout 3 item, a Vault Boy bobblehead. It permanently improves the Lone Wanderer's Speech skill by 10, up to a maximum of 100.
Found in Eulogy's pad in Paradise Falls, on the table next to the terminal in a room with a heart-shaped bed.
Ready for a drink after his speech...?
Collectable speech bobblehead available from the Bethesda store.