1. Used to attract attention or to show surprise.
2. look! see! (now often in the phrase lo and behold)
3. Un incordio, quien lo ha enviado, ¿lo has enviado para mí?
4. P&G's researchers have found that while generally frugal spenders, Hispanics are also willing to splurge on the types of premium household goods that P&G makes, subscribing to the phrase "lo barato sale caro," meaning that cheap things may ultimately prove costly.
5. If that person is liked, the term lo fan is applied.