I stick to 90-120 seconds rest between sets, longer for legs though. I stretch and flex legs during resting and it comes out to about two and a half -3 minutes. Stay consistent, dont have long conversations with people while resting cause it will cause the muscle to lose its pump and end up having to warm up again.

__________________
Either 100 percent serious or none at all
"How the hell can you be sure if its a guy or girl?"
"Shoot em and hear them scream. Trust me, you'll know." cleaningotis answering SniperXL50