why dont my plant let out any smell

i got 30 days till cut day and still no smell i have co2 there growing nice
me and a friend started in the same time he got strong smell and i got bigger
buds but i want smell and taste too can any body help plz thanks

because they are happy...maybe

sounds odd i know....but go ahead and give one plant a good solid backhand
don't break stuff of course...but a good thumping

...it might give off a sent then...if it does, the fragrance will mature during ripening/curing
if not...i haven't a clue....

EDIT:
actually...never mind...don't
i'm roasted and don't really know what i'm doing anyhow...

I agree with Chubby. Grab a stem and give it a wiggle. It should release some smell.