The phrase "how to measure 2" is ambiguous, so clarifying the context is helpful. If the intent is about measuring "2" in cooking or volume terms, such as 2 cups or 2/3 cup, here are some practical details:

• To measure 2/3 cup when you do not have a 2/3 cup tool, use a 1/3 cup measure twice. Filling the 1/3 cup twice results exactly in 2/3 cup (about 5 1/3 tablespoons or 5.3 fluid ounces).

• For other fractional measurements like 2/5 of a cup, it's approximately 6.5 tablespoons or a little less than half a cup. You can combine common measures like 1/4 cup plus half of 1/4 cup to approximate this.

• Common volume conversions: 1 cup = 16 tablespoons = 8 fluid ounces; 1 tablespoon = 3 teaspoons = 0.5 fluid ounces. Measuring cups for both liquids and dry ingredients vary by volume (US cups roughly 240 ml).

If the question "how to measure 2" involves a different type of measure (not volume), please specify for more accurate guidance.