Hey sorry if i am in the wrong place to post this but yea.
i am having problem with doing this little pull off followed by hammer on,
B - - - - - - - - - - - - - - 5h6 5
G - - - (5h) 7p5h7------------
this is it.
i post a video of youtube :https://www.youtube.com/watch?v=-An16-yAXH8
showing how i am doing it.
please help, am i doing it right ?
It would help if you linked the tab you got this from and or the name of the song and artist so we can hear how they are playing it....

That said...the way I would play it is the (5h) to me is a ghost note since it is in parentheses and can be played or not depending on the song... So without knowing what song this is I would then strike the G String at the 7th fret pulling off to the 5th fret and immediately hammering back to the 7th fret all in one motion...

Then I would strike the B string at the 5th fret and hammer on to the 6th fret and then strike the note at the 5th fret.