Despite these qualities, Ted often acts immature, such as partaking in wild activities with Barney.

He has a habit of acting slightly strange and immature.

If the UI can't withstand your acting generally immature and stupid, it could use some work.

Usually very loud and energetic and can act immature.

For the most part, I try to enjoy myself - act immature, get dirty, have fun.

She often acts childish and immature, and is sometimes an airhead.

Oh, for Christ's sake, stop acting so immature.

Not very well built, he's also not a very smart robot, constantly acting immature and fears Bedlam's wrath above all else.

Okay, if you're going to act immature," she began, "we'll solve this the way Mom solves problems between David Michael and Karen.

He also acts immature (picking his nose and eating snot) and speaks in the third person ("George can't hear you").