On the street and on public transport, take your eyes off your fucking phone screen and set your sights on mature men you find attractive. Seek to connect glances, convey your desire with subtlety, silently suggest to him how much you would like to have his cock in your mouth. Follow him discreetly. At some point he'll turn his head to check that you're still there, stop and talk to you, a little nervously, about any nonsense. Then he'll be ready for you to take him to your apartment.