A common question I get from students is "how should I hold my racquet while I am waiting to return serve"?
The answer can depend on how you like to return (blocking or swinging at the ball), and whether you have a one-handed or a two-handed backhand. Here we will focus on the two-handed backhand, which is how most players hit their backhand these days, and on a swinging return, which is a more modern approach to this important part of the game.
In this video, you will be able to see that players should have a forehand grip on their dominant hand (the bottom hand) and the backhand grip on the top hand. This way they are equally ready to return from both sides. See detailed instructions here.