>>2342682820-30 is prolly enough. You don't wanna overdo it with edibles its nothing like smoking and getting too high on edibles is always horrible and anxiety enducing even for expirenced stoners.
If you want a light giggly high you should smoke a very small amount of a pure sativa strain.
If you dont wanna smoke bud you could get a Vale but they are made with extract and may be far too strong for a first timer.