视频聊天，英语怎么说？

should be "webcom" not "video"
so you should ask "would you mind start webcom with me?" that's popular on msn
OR "can we start a video conference?" like a business meeting using webcom.

我英语差西，不懂。。

CHAT VIDEO FREUENCY

chat on STH：通过STH来进行闲谈 聊天

chat on video