Why an after-work invitation is just "one cup 喝"

Where the picture shows up in 喝

1. 1

   water goes down

   多喝水，会好一点。

   duō hē shuǐ, huì hǎo yìdiǎn

   Drink plenty of water and you'll feel better.

   The cup tips and water runs in one long line down the throat

2. 2

   the alcohol never goes down

   我开车，不喝酒。

   wǒ kāichē, bù hē jiǔ

   I'm driving, so I don't drink.

   A palm covers the offered glass while the other hand holds up the car keys

3. 3

   one cup, together

   下班一起喝一杯吧。

   xiàbān yìqǐ hē yì bēi ba

   Let's grab a drink after work.

   Two glasses clink on the way home and both heads tip back at once

4. 4

   far too much went down

   他昨天喝多了。

   tā zuótiān hē duō le

   He drank too much yesterday.

   A row of empty bottles on the table and a face down among them

5. 5

   soup goes down

   趁热喝汤。

   chèn rè hē tāng

   Have the soup while it's hot.

   A steaming bowl is lifted to the lips and the broth runs down the throat