How do i flirt to make someone jealous? or just to flirt?

apparently i flirt when i don't try to but i don't know how to flirt. like when i was with my ex still i never flirted with him but when that ended and he got a new gf i flirted with him allot. i don't know how to flirt but i need to learn how and i want to make him jealous but i need tips on how to flirt?How do i flirt to make someone jealous? or just to flirt?
Trying to make someone jealous is very immature and cruel and dangerous.

viikii.net

product key