Little brown mushrooms are probably the most risky you could be picking. As someone said, they could be Galerinas, and if so, they can definitely kill you. Many mushrooms look like that, but those do not seem like any type of psilocybin that I have seen. If you don't know how to spore print a mushroom, then I would say learn that first, then take that information to make a good decision. Galerinas spore print a brown/orange sort of rust color, while some that look similar like psilocybe cyanescens, and psilocybe azurescens both print purple. Also, the latter two will also bruise blue on the stems and on the edges of the cap. Another difference would be that the stems are the wrong color. I have heard that the Stunzii ones look a bit like those, but I wouldn't risk it, it's not worth it. Dying from galerinas takes about a week, and from what I understand can be a rather excruciating way to go, and even with a liver transplant, you're not going to enjoy your life should you survive. If you're interested, head on over to shroomery and do some learning. Just my two cents.