At the beginning of every match the racquet is spun or a coin is tossed to determine who serves first. Most players, out of habit, always decide to serve first. Is that the best decision? Not necessarily.
If you’re a slow starter, if your return game is better than your service game, or if your opponent has a weak serve then choosing to receive first may be a smart decision. By opting to return to begin the match you give yourself extra time to get warmed up without risking going down a service break. And if your opponent has a tendency to be shaky in the early stages of the match you just might go up an early break yourself.