first of all, welcome to the wonderful world of weed! i hope you love your stay! :rasta:
well... as first-time smoker, is very possible you not become high. it happens a lot. maybe people dont inhale properly, or the body just is not used to thc and dont know how to react to it... anyway... if you dont feel anything when you smoke, dont give up. sometimes it takes several tries until you become high.

BUT, also the thc takes some time to work. so, i would advise you to smoke slowly. take one-two hits, wait some minutes (5-10), if you dont feel anything, take more one-two hits, and so...
dont do like me... in my 1st time i smoked 6 hits non-stop... minutes later i was in the outer space :stoned:

Set and setting are VERY important things... you MUST be in a place you feel confortable, with people you completly trust, without any worries... cause when you become high, you may be unable to carry on even the simplest things (like talk coherently), so if you had any worry about being catched or something like this, you can panic and freak out. So do it with plenty of time (4-5 hours). I would suggest you and your friend dont go to school and smoke in this time. By the time the class would be finished you can be sober enough to come home.

The high can be like this: after a lot of coughing, you start to feel your body is relaxing... your eyes feel like closing a bit, your head feels heavy... you think "i think it does not worked... everything seems SO normal"... and then........

..................oooooowwwwwwmmmmm..... suddenly things become VERY weird... you blink and then "what i was thinking a moment ago?" you forget... you notice the world seems "plane", the vision has lost its depth... the colors seems SO brighter... you can notice minute details of everything around you... like youre seeing the world for the first time... everything seems so new... then you notice a lot of sounds into your head... they are just the sound of things around you, but they seem much louder... and you can percieve details of sound you never realized before... listening music is an awesome thing while stoned...

time slowed down to a snail pace... seconds feel like minutes, minutes like hours... you thoughts are racing... you think a thing and it makes you thing about another one, and this one makes you remember about another one, and so on... you think millions of things in minutes... probably you start laughing madly at this point... everything seems SO fun...

if you feel scared by the weirdness of it all (as i felt), try relax... try remember its just weed and you WILL be fine after the effects are gone.
if you can, try to eat some chocolate while stoned... is a amazing, wonderful experience... the seventh heaven for me
well... i know im forgeting a lot of things... but im sure another people will notice and post what is missing... there are a lot of very cool stoners here

so, good luck, and again, welcome to this wonderful plant! :jointsmile: