Use rubber cement, WD40, Mineral Spirits, or hairspray as a lubricant. Note: Keep lubricant off outside surface of the grip and hands to facilitate a secure grip when installing. The lubricant will evaporate and the grip will then produce a tight bond.
Most players hang the "stabilizing rings" slightly over the end for best performance.
Allow at least 1 hour before use.
If all else fails, take it to your club's stringer and let him/her do it.