Pop up and Shake hands

Pop up verb - Appear suddenly or unexpectedly.

Shake hands and pop up are semantically related. In some cases you can use "Shake hands" instead a verb "Pop up".

Shake hands verb - Take someone's hands and shake them as a gesture of greeting or congratulation.

Pop up and shake hands are semantically related. Sometimes you can use "Pop up" instead a verb phrase "Shake hands".