2、Practice acts of kindness.

    These should be both random (let that harried mom go ahead of you in the checkout line) and systematic (bring Sunday supper to an elderly neighbor). Being kind to others, whether friends or strangers, triggers a cascade of positive effects-it makes you feel generous and capable, gives you a greater sense of connection with others and wins you smiles, approval and reciprocated kindness-all happiness boosters.

2、做好事

    应该既有随机的（在排队的时候让那位筋疲力尽的妈妈排到你前头），也有按计划的（每星期天为一位年老的邻居送晚餐）。善待他人，无论是朋友还是陌生人，都能激发出一连串积极效应—它让你感觉自己慷慨而且有能力，让你感受到和他人的联系，为你赢得微笑、肯定和友善—这些都能增加你的快乐。