hey dude.
why wait on the safe side for other peoples experiences? If i was you, i would experiment right away, come back here and ask questions about the experiences you have had.
Although you are not of legal age for night clubs, i am sure you have social events with people of your age. If i was you, i would go for a method and try it. If not going for you, try another one. Experience yourself! Most of the material can be bend for use in other situations then night clubs. You will learn much more from this then asking about experiences
good luck!