Tell your friends to relax and not think to hard about it. They didn't feel it the next morning... your not going to be sober and then hours latter get high. Don't tell them to swallow, thats a stomach thing, they need to inhale thats a lung thing. Just tell them to breathe in from the bottom of their lungs and take a big slow breath. Hold the hit for a few seconds and exhale. Repeat. I thnk its a mistake to give friends not enough weed the first time. Its misleading ... they think they can't get high and give up and go elsewhere. If your going to smoke them out, do it right. Anyways... good luck with that.