Ability Score Increase: Your Dexterity score increases by 2.
Age: A halfling reaches adulthood at the age of 20 and generally lives into the middle of his or her second century.
Size: Halflings average about 3 feet tall and weigh about 40 pounds. Your size is small.
Speed: Your walking speed is 25 feet.
Lucky: When you roll a 1 on an attack roll, ability check, or saving throw, you can reroll the die. You must use the new result, even if it is a 1.
Brave: You have advantage on saving throws against being frightened.
Nimble: You can move through the space of any creature that is of a size larger than yours.
Languages: You can speak, read, and write Common and Halfling.
Along with the traits above, choose a subrace: “lightfoot” or “stout”.
As a lightfoot halfling, you can easily hide from notice, even using other creatures as cover. You're inclined to be affable and get along with others.
Ability Score Increase: Your Charisma score increases by 1.
Naturally Stealthy: You can attempt to hide even when you are only obscured by a creature that is at least one size larger than you.
As a stout halfling, you're hardier than average and have some resistance to poison.
Ability Score Increase: Your Constitution score increases by 1.
Stout Resilience: You have advantage on saving throws against poison, and you have resistance to poison damage.