他经常在酒吧里蹭别人的酒喝。

He's always ___bumming drinks at the bar.

周末他无所事事，整天在公园里闲逛。

He spent the weekend just ___bumming around the park.

他又来蹭我的零食吃了，从不自己买。

He's always ___bumming snacks from me instead of buying his own.