Stay on the offensive, unless you feel like patiently rallying, which you probably don't. No man's land is the area around the edge of the service box. If you find yourself there, go forward. Try not to retreat unless you are lobbed-on. The mental game of singles Having a good mental approach in singles takes years for some people.
People take different approaches, too.
Borg and McEnroe were the classic examples of two styles. Don't pat yourself on the back too much after a good shot. Don't beat yourself up too much after a mistake. Etiquette Fortunately, tennis has become less of a rich man's sport over the years, but there are some traditions about the game that should deservedly stay in place. One of those is to be aware of your on-court demeanor.