I bought a super pump 250 a couple of days ago fruit punch just to get a good pump i m not a body builder?

however i have lean muscles i m a kick boxer some time ago i lost the pump in my body i know it sounds stupid however that's wat happened before that i had never taken any supplement in my life coz i was just doing it to keep myself fit now a couple of dayz ago i bought super pump 250 coz of the great reviews on the internet and heard how it gives a great pump ,i am just taking one scoop a day just like the instructions said for the beginners, however not feeling any pump can anyone suggest me what's the best of taking it is it one scoop or two ?