Constant snacking, no matter how big or small. When dating my husband I used to hand him a packet of cookies after his class. A few months later I was walking by the building where he had class, to see him resting on a bench and eating his own snack.
Always have snacks anywhere they can fit, anywhere you spend time, and making your spaces be those in which you can sit for long periods of time. Anything that gets you eating more, moving less is good.
11 months