Short version:
1. Go to https://bitcointalk.org/index.php?board=159.0 and hunt for new altcoin announcements.
2. Pay attention only to those currencies that have the higher number of posts in dedicated thread (hype is what your are looking for).
3. An hour before the official start, prepare your miner and if you lack the power, rent 5 cloud servers x 32 CPUs each (1000khash = $7 per hour).
4. Mine new coin for the first hour, and when you have millions, sell it to latecomers.
5. Repeat