Eh - a bit like in where character in asian drama are shock "ehhh" but keep it short
Kuh - the k sound followed by the embarrassed "uh" sound you could do
Nay - like the song watch me " what me whip watch me NAE NAE"
Shuh - you start with a shush sound and end with a "huh" like when you are wondering or surprised pleasantly. If your familiar with French I tend to pronounce is with a soft a i don't know if that work in english
Echinacea --> eh-kuh-nay-shuh
Eckie --> ek(like neck or deck)-ee(like bee or happy)

honestly ml is such a cutey I love whenever he gets soo blushy (づ ̄ ³ ̄)づ sidenote how do you even pronounce fls name... I've just started to skip over it...( ̄∇ ̄")