get the right tempo. Common ones are:
133/135 bpm, 140bpm, 150 bpm, 160 bpm, 180 bpm.
Get the right sound. If you want a soft dance song, Sidechain your bass (Visit Nav or Navij11's page for a tutorial in FL to do so) or if you want a heavier song, just put the bass on the offbeat. Soft = Use Slower Melodies. Harder = Go for Arps
Dont simple use the Kick hat snare hat Beat. Add something behind it. E.g A quiet breakbeat and some extra hats and percussions in.
Master your song. (EQ it, Compress it, make it so all instruments can be heard etc)
Try to do new things in every song. Experiment :]