I've never had Monster except about half a mili because my friends told me I had to at least know what it tastes like. Never had Redbull either. I used to down Gatorade like water, though.
I do like instant coffee, though; there's a brand from Taiwan that my mom was given that's really damn good. .....I don't think caffeine does much to me, though.
I'm hot cause it was hot outside plus my feet hurt due to the terrible flip flops I had on T_T the flip flop straps were hard and kept on digging into the middle of my foot T_T