Before either team is allowed to volley – hit the ball before it bounces – the ball must bounce once on each side.
So, the serve must bounce before it’s returned, then the ball must bounce once on the server’s side before that team can volley.
This is one of the rules that will get enforced in recreational play. This doesn’t mean that other rules won’t be enforced, but this one is always enforced.
So, after you serve, stay back to allow the ball to bounce on your side. There’s usually no problem letting the ball bounce on the serve.