What side do you stand on for your first serve?

Answer 1

On your first serve, you always stand on the right side, also known as the "deuce" side. No matter which set or game you are serving in, you always stand on the right side when serving for the first time. This goes for each game.

However, in the standard tie-break which starts at 6-all, after the first serve, each players serves twice, starting from the ad (left) court, then from the deuce (right) court, until the tie-break is completed.