Classic DW intentionally avoids characterizing the races . Instead, individual GMs are giving free rein to make all of them as unique as they wish. Here are some questions that GMs can think about either while Prepping for their first game chronicle or to ask the players during First Session.
1. How common are halflings in the the Known World compared to humans, dwarves and elves?
2. What are the three physical traits that more distinguish halflings from the other player races? Is there anything physically unique about them compared to Tolkien or D&D?
3. Are halflings found in multiple regions in the Known World? What is three important or interesting about the specific halfling culture closest to where the game session/campaign begins?
4. Are any of the adventurers halflings from this or a nearby region? What are three things they were taught about the human race? And the elves? And the dwarves?
5.Do the halflings starting area have good relations with the humans? The dwarves? The elves? Is there a different race they have good relations with? What about a non-player race or creature that they especially fear or dread?
6. Do the halflings of the starting region celebrate any special holidays or worship a deity of any kind? What are three important or interesting things about the local halfling religion or holidays?