"as long as u feel comftorable", thats wat most people say but i think thats way too over protective. The first time i took acid i took 2 hits and douring the trip i had some pretty cool visuals and feelings. I went to the mall, walked around with friends from like 9- 3 in the morning. I went to alot of crowded places with ppl i never met and it was the best time of om my life. as long as if u dont have any bed feelings running through ur head id recomend u not sit in a room but go hang out and walk around. it'll be very worth it. dont take more then 1 hit though, a hit can have between 50 - 150 mg so be carefull, thats one of the bad things about acid( u dont know the exact amount)

hope this helps