FirstWeeksYour baby at 6 weeks: first real smiles
Medically-informed · Sources: CDC · Updated June 2026
The payoff week: social smiles often arrive right when parents need them most.
What’s happening
Smiles that mean you
By around 2 months most babies smile in response to you — not just gas. If it hasn't happened yet, the window is still wide open.
Calms to your voice
Baby quiets or turns toward a familiar voice more reliably now.
Another appetite jump
A growth spurt around week 6 is commonly seen — expect a hungrier couple of days.
What to do
- Talk and sing face-to-face during awake windows — conversation is development
- Keep tummy time daily, a few minutes at a time
- Book the 2-month checkup if you haven't yet
When to check in
By 2 months: no response to loud sounds, or not watching things as they move — mention it at the checkup.
Skills to watch this week
- 6–10Smoother arm and leg motion — Newborn jerkiness gives way to flowing movement.
- 6–10Holds head up in tummy time — Steadier lifts, chin well off the mat.
- 2–6Makes throaty little sounds — Grunts and sighs — the warm-up band before cooing.
- 4–8Social smile — Smiles back at your face and voice — the first true conversation.
- 5–9Watches you as you move — Eyes follow you across short distances around the room.
- 1–6Rooting reflex — Turns toward a cheek stroke with an open mouth, hunting for food.
Every baby has their own pace — ranges are typical, not deadlines.
This is exactly what FirstWeeks shows you — matched to your baby
Week 6 guidance, skills to watch, and answers that know your baby’s age and log.
