hit (someone) in the face

To talk about hitting someone's face, use the preposition "in":

I hit him right in his ugly face!

Use this for objects too:

The ball bounced up and hit me in the face.

You can either use "the face" or "my/his/her/etc. face".

One common variation on this phrase is "right in the face", which means hitting someone hard and directly in the face.

This phrase appears in these lessons: