Surely you're not getting it right off the plant..

But anyways, just leave the baggie or container open for a couple hours, checking it periodically. Just make sure you don't keep it closed up in something without any airflow.. it could cause mold. I actually got some damp weed last week (he gave me more than my 1/8 I requested because he knew the weed was damp, so the scales would be off a little.. i <3 my dealer).. anyways.. I just let the baggie sit open for like 2-3 hours.. and after that, I was good to go. No loss in potency from what I could tell.