要个签名的英文怎么说

want /ask for an autograph
名词 n.

1.亲笔;(尤指名人的)亲笔签名
May I have your autograph?
能不能给我签名?
2.亲笔稿;手迹

及物动词 vt.

1.亲笔签名于
I asked the author to autograph my book.
我请作者在书上亲笔签名。
2.亲笔书写

May I ask you for your autograph

Would you please leave me a signature?