prego^^

”よ”is more soft

for example

i ate 食べた(Tabeta) or 食べたよ(Tabetayo)

"よ" is use for friend and family.

but not use for other. because it is not formal word.

but not dirty word

Thank you Satoshi for you help!! ( ﾉ^ω^)ﾉﾟ