You can google for the phrase {"check tire pressure every"}
and get a lot of input. Seems like the consensus is to check
about once a month. This is consistent with my experience:
My 91 Civic's tire pressure does not usually change over two
weeks time. Sometimes it stays the same for a month. I also
always check it before long trips.

When the seasons change, and so temperatures change
markedly, check maybe every two weeks.

If I were you and so a little new to this, I'd start by
checking every two weeks. If there is no change in the
pressure, adjust this to once a month.

Yours is a good question and not at all random, since
improper tire pressure can have a huge effect on (1) fuel
mileage; (2) tire wear; and (3) handling. Indeed, newer
Hondas now have a tire pressure monitoring system in place,
IIRC ostensibly to ensure better fuel mileage, and so less
consumption of gas in the U.S. (and maybe elsewhere).

I have been maintaining my 91 Civic's tire pressure at 30
psi (instead of the 26 psi specified on the sticker in the
glove compartment) for better fuel mileage. I don't notice a
difference in the ride harshness.