pick up somebody

　　I'll pick you up at the airport.

　　pick up girls

　　Foreign guys like to pick up Chinese girls in clubs.

　　pick up

　　My luck has picked up!

　　To buy

　　I picked up some snacks at the store.

　　pick up the tab=pick up the check

　　Whenever we go out, I pick up the tab.

　　Order whatever you want. He's picking up the tab.