If we pass by each other on the street
Act like you didn't see me and go the way you were walking to
If you keep thinking about our past memories
I might go look for you secretly

Always be happy with him, (so) I won't ever get a different mind
Even smallest regret won't be left out ever
Please live well as if I should feel jealous
You should always be like that bright sky, like that white cloud
Yes, you should always smile like that as if nothing happened

I'll give you harder one... Some chapters are not originally in English. So careful...