You know when sometimes comedy mangas change their art style to old school shoujo (complete with trailing tears, sparkles, roses, and a pointy nose)? I love those scenes. Any comedy manga with that would be great, thank you.

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Konjiki no Gash!!
This is the only one coming up in my head at the moment. I'll see if I can remember more.

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Sket Dance - Not exactly from the beginning, but later it basically becomes an running gag

i don't know you wanna read this type of manga or not but check those:
denpa kyoushi
Evergreen
Horimiya
Mahouka Koukou no Rettousei
Saito-kun wa Esper Rashii
Shurabara!
skip beat
Ikebukuro Hatsu, Zensekai Yuki!

i don't remember correctly but i think these manga have some of those scenes

Pretty sure Heroine Shikkaku

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Favorite Art:
Oboreru Knife
19 Days
Gangsta

Thanks for the recommendations, guys. Honestly, if a mangaka throws in melodramatic drawings over small matters to blow things completely out of proportion, they really have my sense of humor. I'm sure I'll love all of these.

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I believe Asu no Yoichi! had some...any time Washizu showed up, but otherwise it was not a great story.

You guys did perfectly. I wanted to send a drawing to a friend via 3DS that would make her laugh, so I needed a reference because I can't draw to save my life.

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Oresama Teacher has some hilarious scenes like that XD
Fairy Tail had one little story when the main girl thought the protagonist guy was in love with her and had some scenes like you want I think.