This is how you play the Bsus4 chord on guitar.

Tune your guitar
Tune your guitar to standard tuning (EADGBe)
Index finger: 2nd fret, 5th string.
Place your index finger on the 2nd fret of the 5th string.
Ring finger: 4th fret, 4th string.
Place your ring finger on the 4th fret of the 4th string.
Pinky finger: 4th fret, 3rd string.
Place your pinky finger on the 4th fret of the 3rd string.
Play chord.
Strum all strings, except the 6th string.

https://guvnaguitars.com/chord/bsus4/