Now for the fun part --- blooming!  I suspect that some people get dwarf Meyer lemons for the beauty and fragrance of the blooms alone, not even caring about the fruits.  Other dwarf citrus plants have similar, but less showy, flowers, and the information below applies to all of the common species.

Meyer lemons can bloom throughout the year, but they tend to bloom the most in the winter, as do most other dwarf citrus trees.  That presents a problem since there are no bees flying around your living room to pollinate the flowers.  I've found that some flowers will self-pollinate (especially if you shake the tree a bit), but you'll get more fruits if you take a few minutes to hand-pollinate each new batch of blooms.

The flowers are ready to be pollinated when the pistil (green part in the middle of the flower) is shiny and the petals are lush and white.  Simply take a small paintbrush (or your fingertip) and gently tap the stamens of one flower to gather pollen, then tap the pistil of another flower to fertilize that fruit.  You'll have to repeat this procedure a few times over the course of the bloom since flowers open in stages, and some have already lost their petals (too late to pollinate) by the time the last ones have opened.

Another option --- but one I can't recommend --- is to open your window during a sunny winter day and let your honeybees in.  We did this last year because our worker bees could smell the flowers' aroma through the screen and wanted in for such a luscious winter treat.  The bees pollinated our tree beautifully, but couldn't figure out how to get back outside, and several perished.

No matter how you pollinate the flowers, you'll know you've been successful if the flowers drop their petals but maintain the green ovary in the center.  The tree will naturally thin itself, dropping perhaps 75% of its flowers within a few days of full bloom.  Citrus trees generally go through a second round of thinning a few weeks later when the fruits are pea- to marble-sized.  After this second thinning, you may choose to thin a bit further so that there's no more than one fruit in each cluster.

Then you wait, and wait, and wait.  Our dwarf Meyer lemon generally takes about eight months to ripen its fruits, which gives us lemons in November or December.  You can tell the fruits are ripe by color (Meyer lemons should actually turn slightly orange) and by the lift test --- gently lift a fruit upwards, and if the fruit is ripe it will snap off the branch without any force on your part.  Give one fruit a taste and then pick the others if that one was juicy and sweet.

I won't bother to tell you what to do with the fruits.  They go far too fast because they're so delicious.  That's when you have to be careful not to buy five more dwarf citrus trees, requiring you to kick your kids out to take over their sunny room.