Russian ⇄ English German Italian Turkish

вести себя как ребёнок stresses
gen.	adolesce; behave like a baby (Andrey Truhachev); act like a baby (like a fool, like a true friend, like an Othello, like a prima donna, etc., и т.д.); behave like a baby (like a child, like a grown-up man, like a man of honour, etc., и т.д.)
Makarov.	act like a child; behave like a child

вести себя как ребёнок: 5 phrases in 2 subjects

General	3
Makarov	2