The steel hulls of ice-breakers are much thicker than those of standard vessels.
The new college hallmates were awkward with each other at first, but after a game of charades as an icebreaker, they were laughing like old friends.
This icebreaker is a question for the person to answer so you can get to know her better before contacting her directly.
An antique dress or even just a vintage handbag can be a great icebreaker.
Family reunion games for adults can serve as an icebreaker for those relatives who haven't spoken in years, or perhaps haven't even met face to face before.