(1) What does the expression "pass the salt" mean. (2) Please explain the meaning of "picking up the tab" in the following paragraph: " Trhe deal has come through at last. And Naresh Goyal, the chief of India's biggest private airline, is picking up the tab.
Salt is served at table in a salt-cellar. You ask your neighbour to "pass the salt" when you want to put som eon your food.
"To pick up the tab" means to be the one who pays the bill.