Bikes flat tire

I really know it’s quite uncool to go to the next bike store to ask if they can fix the flat tire-normally this is one of the things a man must know how to do (like fancy cooking and all this modern man stuff 😉 ) -but first of all I have no idea how to inflate with this strange ventil the tires have, and I’m not sure if it’s the tube or the outer tire-so, i am off to the bike store, but pls.: don’t tell anyone…;)