Wave for me with 〜てくれる

Grammar Explanation: Receiving kindness with 〜てくれる

Yotsuba and her father are driving to their new home. As they pass a school letting out, Yotsuba waves to a student. When the student waves back, Yotsuba tells her father to wave too.

父(とう)さん:: 「とーちゃん手(て)がはなせないからな俺(おれ)の分(ぶん)もよつばがふってくれ」; “Dad can't take his hands off (the steering wheel), so Yotsuba, please wave for me too.”

Key Points

1ふってくれ = “wave for me”

ふって is the te-form of ふる, “to wave” a hand.
〜てくれ is the plain request form of 〜てくれる. Dad asks Yotsuba to wave for him.

2俺(おれ)の分(ぶん)も = for my share too

俺(おれ)の分(ぶん) means “my portion/share.” Dad means the wave he would give if his hands were free.
も adds “too/as well”. Dad wants Yotsuba to wave for herself and for him.

3Why Dad cannot do it himself

手(て)がはなせない means “cannot let go of his hands”. Dad means he cannot take his hands off the steering wheel.
からな gives the reason in casual, masculine speech: “because, you know…”

4Casual sentence flow

Read the line with pauses: とーちゃん手(て)がはなせないからな、俺(おれ)の分(ぶん)も、よつばがふってくれ.
よつばが marks Yotsuba as the person doing the wave in Dad’s place.