"Fielding at slip is one of the toughest places to field on any cricket pitch. You can stand there all day and not get a simple chance until the last ball of the day. So concentration is key.
Make sure your stance is comfortable. Ideally your feet should be around shoulder width apart. Keep your hands around knee height. And keep your eyes level at all times.
As mentioned earlier, the key to fielding at slip is to relax and concentrate. Let the ball come to you. And try not to snatch at the chance."