string height

i just started playin guitar like 3 months ago when i bought my squier by fender strat. recently one of my friend got a pevey raptor and i noticed his strings were way lower than mine. i asked another friend who also plays guitar and he told me how to lower my strings. but when i do the strings buzz on some of the frets when i play. why can't i get my strings as low as my friends.

All guitars are slightly different- just lower youre strings as low as possible before they buzz. My 5th string buzzs slightly but not significantly enough for it to be heard on the amp. Also listen out for fake buzzing as i call it, the point of contact where the strings go up and over the the bridge can cause buzzing. Ie the string isnt settled into the groove correctly.

Kriss

If you get lower gauge strings , you'll be able to lower the strings a little more without buzzing.

But for a better tone , you should have heavy gauge strings and more string hight (action) ... You can try adjusting your playability to that .

You should also check the truss rod , adjusting it might help.

truss rod , what? like i said im new to this whats a truss rod

Depending on the type of your guitar , but normaly you'll find a small cover screwed on your headstock (near the nut) , remove it you'll find the truss rod adjusting screw.

The truss rod is a machine that adjust the bowing of the guitar neck so that if you fret the first and the last fret there should be a small clearence between the string and the fret in the middle.
The buzzing in your guitar may be a result of a wrong truss rod adjustment.

Search for truss rod adjustment for your guitar , most guitar manufacturers sites got some tech tips on setting it up... If you don't feel you can do it yourself , have a guitar tech to do it for you.