请自便喝点咖啡。

Please ___help ___yourself ___to some coffee.

茶点在桌上；请随意自取。

The refreshments are on the table; feel free to ___help ___yourselves.

在自助餐上，客人们可以自取菜肴。

At the buffet, guests can ___help ___themselves ___to the dishes.