In a nutshell?  “Ask don't assume, encourage Keep In Touch days and demonstrate your commitment to helping your colleague have a smooth return."

Before your colleague goes on maternity/adoption leave

Demonstrate a desire to get things right by asking your colleague what she would like or needs from you at...

When your colleague is on leave

In a nutshell? “Ask don't assume, encourage Keep In Touch days and demonstrate your commitment to helping your colleague have...

When your colleague has returned

Ask about life at home and show interest in the family. First thing in the morning and before going home...