mooch

I'm going for a mooch round the shops (= to look at what is there, not to buy a particular thing).

我去商店逛逛。

Stop mooching (about/around) in your room and do something useful!

别在房间里闲呆着了，做点儿有用的事！

He mooched a few beers from me as we watched the game.

我们看比赛的时候，他从我这里白拿了几瓶啤酒喝。