2 days is not enough at all but you can see the highlights at lovely lisbon you can visit Belem and try there pastases "Pasteies de belem " you will never taste at anywhere else at the world and see the famous Belem tour and walk along the ocean and see the second longest hanged bridge at the world you can do at at the first day morning then at night you can go to columbo mall its one of the biggest malls at europe
the second day yopu can go to Sintra the magnatic natural city abd at night go to the old town and try any portugese restaurant