The Dsus2 is a pretty easy chord, your biggest problem is avoiding muted strings. The middle finger gets placed on the second fret of the G string and the ring finger is on the second fret of the C string. This is easier than using the index and middle together instead. You will need to slightly move the middle back to make room for the ring, and make sure that finger doesn’t touch the open E string. As long as you keep the fingers as straight as possible you shouldn’t hear any dead or muted strings.