A new study shows that dads respond differently to daughters and sons. When they're with their daughters, dads:

• Sing more to them.

• Speak more openly about emotions, including sadness.

• Respond more quickly to cries.

• Use more words relating to the body (belly, foot, tummy).

• Use more analytical language (all, before, much).

• Avoid rough-and-tumble play.

Source: Jennifer Mascaro, Emory University and the American Psychological Association