If you are being sarcastic, haha. If not, an engine needs the proper air/fuel ratio, compression and spark at the right time to start and run. Find out which of the three is missing. A short blast of carburetor cleaner right into the carburetor itself is a good way to test for missing fuel. If you spray a shot in the carburetor and the engine starts, runs and then dies right away you are missing fuel. I replace lots of honda carburetors for various reasons, it's not uncommon.
Sounds like it is time to start troubeshooting. Check the easy things first like spark plug and the air filter. Click on the link below to find a practical troubleshooting guide if you are still having problems after checking all the basics then write some more details. Good luck! The Practical Consumer | Push Lawn Mower Will Not Start
