Step 1: Make romantic dinner. Use candles. Cooking sillz are a plus, but microwavable pizza and milk are fine too.
Step 2: Bring waifu to bedroom or basement, dim lights, have romantic music playing.
Step 3: In a direct gesture, throw target appendage around waifu. Being obnoxious and lewd is acceptable, remember waifus like that- Just act like Zeni.
Step 4: The birds and the bees. You guys remember health class.
Step 5: congratulate yourself.