★相槌(あいづち) を 打(う)つ [Japanese Proverb]

Interjections are used to show your interest when someone is talking to you. In English, people often say Uh-huh, yeah, wow, ok...etc. In Japanese, we say うん, へぇー, そうそう etc.

When you give responses to the speaker, we say
相槌(あいづち) を 打(う)つ

This proverb describes 2 people facing each other when they hit iron alternately to make a sword.

槌(つち) is a tool for hitting things.
相槌(あいづち) are responses to the speaker.

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★Let's use this proverb in the conversation!

A:すいはいい先生(せんせい)だね
Sui is a great teacher.

B:そうだね
Right

A:やさしいし、
She is kind,

B:そうだね
Right

A:きれいだし、
beautiful,

B:そうだね
Right

A:さっきから同(おな)じ相槌(あいづち)を打(う)ってばかり
You keep giving me the same responses over and over

B:そうだね
Right
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あなたは相槌(あいづち)を打(う)ちますか？
Do you give responses to the speaker?

いつもどんな相槌(あいづち)を打(う)ちますか？
What kind of interjections do you usually use?