hi localfilipinopride
that's such a big and general question...it's very hard to just say "play this or this..."
The ukulele is one of the most adaptable, genre-crossing instruments there is...it can really play ANY style of music your heart desires!!!
Like Bob just said, I guess the question you need to ask yourself is 'what kind of music do I like?'...and therefore, 'what kind of music you want to play and / or sing along to?'. The answers to those two questions will at least have you headed in the right direction as you look for some songs to learn...
For me its old-time folk music, and early blues, jazz, novelty songs and show tunes from early 20th century. But everyone's taste is different and you'll get a different answer from everyone...
You can play, rock, pop, traditional hawaiian, ska, reggae, literally anything you want...
happy song hunting!!!