Add Language Selection Icons in Secondary Menu

Hi,

I have a secondary menu on the very top of my page. I would like to add two clickable flags for language selection and I need the flags to be placed after social media icons. So the structure would be like links – social media buttons and flags.

I truly appreciate it if you could let me know how I can do it. Thank you….

P.S.: I do not want to use any other plugin like WPML