YOU SAID:
Today I went to eat dinner at my friend's house
INTO JAPANESE
今日は友達の家に夕食を食べに行きました
BACK INTO ENGLISH
I went to my friend's house for dinner today.
INTO JAPANESE
今日は友達の家に夕食に行きました。
BACK INTO ENGLISH
I went to my friend's house for dinner today.
That's deep, man.