How do you want to follow up your serve?
Have you thought about this recently? Really thought about it? What's your best shot - hopefully an aggressive shot - and how can you serve to set it up? Or do you mostly serve and push? Conventionally, you should serve & loop the return if at all possible; do you? At the higher levels, the most common strategy is to serve short (but usually not too short - second bounce near the endline), usually with backspin or no-spin (disguised so opponent can't always tell which), and follow with a loop. Or do you have an alternate plan? For example, if you have really tricky serves (relative to your level), you might serve over and over to win the point outright (or at least get an easy pop-up). If you have a nice backhand, you might serve topspin to get right into a backhand-to-backhand contest.
Team USA Table Tennis Page