if i were him i wouldnt really want to have to try and hide it, it just doesnt go along well with the high. but i would take one pil not a half, a few of my friends tried e and only did a half and didnt like it at all but everyone who did a whole hit enjoyed themselves. but that guy saying an hour i strongly disagreed, first time i did e was a whole hit and i did it at school (i wouldnt recommend doing this though) and i was feeling high all day and was coming down by about last class. so in my opinion i would take a whole and he would be feeling it for quite awhile, maybe around 3-5 hours but that was just me and i had a really good hit of e