"Starting in Month 3 or 4 (or whenever he holds his head up well and seems interested), he may be ready to start sitting upright."
What other signs should you look out for?
![](https://external-sit4-1.xx.fbcdn.net/safe_image.php?d=AQBdnnBHFYtEO3JJ&w=160&h=160&url=http%3A%2F%2Fimages.agoramedia.com%2Fwte3.0%2Fgcms%2FMLS-B-sitting-up-343x343.jpg&cfs=1&upscale=1&sx=0&sy=0&sw=343&sh=343&_nc_hash=AQBibE9GqQ2g4epm)
"Starting in Month 3 or 4 (or whenever he holds his head up well and seems interested), he may be ready to start sitting upright."
What other signs should you look out for?