Inside, outside, if you don't prepare for shrooms you're in the market to catch a bad one, good and proper.
Especially if it's your first time and you aren't keen on how to keep yourself from getting paranoid or cognizant enough to handle whatever the fukk your amplified imagination might throw at you. (Dogs with mean faces, Your cock falling off when you go take a wee, Seagulls wanting to talk with you and shyt.) Shrooms are fun as fukk when you've the right mates with you or the right scenario to settle into with ZERO responsibility in the next 4-8 hours after takin' 'em.