I have a hole in my pants
Does it look like a small hole?
Yes it does, it seems to have been punched with a needle or something.
It's good that you noticed the hole while it is small, but  you should probably fix it, otherwise it could get bigger. It could be really embarrassing if it splits open, or even a small hole could look ratty and people will probably stop inviting you places.
That's fine. It's just a small hole.
You're right, that it will be okay for now, but after you get home, you should fix it (or get it fixed).  A tiny hole like that can be mended and your pants will be like new.  Then you won't have to worry.