How do you save a contact onto the home screen? I can't figure out how to save a contact shortcut on the home screen for easy dialing (Ice Cream Sandwich on Galaxy Nexus).

Long-pressing on the home screen prompts me to choose a wallpaper. Long-pressing on a contact in the People app has no effect. I can't find any menu option to do it.

How do you do it?
Found it. There's a Direct dial widget you can add from the Applications/Widgets menu. When you select this, it prompts you to choose a contact.

There are also shortcut widgets for Direct message, Open contact, etc.