How can I make varieties of simple mixed drinks pairing gin and vodka?

I am going to tell you about Apple Martini.

The ingredients are as follows

2 oz of vodka, 1 oz of green apple schnapps, The preparation time is as follows. Put all of the ingredients into a very big cocktail shaker with lots of ice cubes. Shake it well. Strain it into a very chilled cocktail glass.

The Ingredients are as follows:

2 1/2 oz of gin, 1/2 oz of dry vermouth, 1 green olive or 1 lemon twist for garnishing, orange or some bitters angostura (which is optional).

The preparation method is as follows:

Put the ingredients into a small mixing glass filled with lots of ice cubes. Stir it for around 30 seconds. Strain into a very chilled cocktail glass. Add a dash of the orange or some angostura bitters, if it is desired, garnish it with olive or lemon twist.