君って

you...

→ 君
phrase Uncommon #15,503
you... An informal way to bring up or emphasize the person being addressed, often before a comment about their personality, behavior, or abilities. It can sound teasing, surprised, or critical depending on context.
JA: 君って意外と優しいね。
EN: You're surprisingly kind.

君って太ってる

Are you fat?

君ってチームに入れる

Can you join the team?

君って背が高い

Are you tall?

君ってなかなか積極的だね

You're pretty forward, aren't you?

— 最強のふたり (2011)

君って忘れっぽいよね

You’re pretty forgetful, aren’t you?

ところでさあのって野郎君って何なの

By the way, what are you to that dragon guy, anyway?

— AKIRA (1988)

君って本当にトムのこと大好きだったんだよね

You really did love Tom, didn’t you?

君ってバスで見かけたえっ

I saw you on the bus… (Nagi) Huh?

— 天気の子 (2019)

君って負けず嫌いだよね

You're pretty competitive, aren't you?

君って楽観的

Are you an optimist?

君って本当にどうしようもない

You really are hopeless.