I came across an article. It was about how language makes us change our behavior or even remember the thing differently (How Language Seems To Shape One’s View Of The World). I start to think about it and yes, indeed, I could find the connection. I’m way more affective when using English. Little words like dear, love, darling are constantly in my lips whereas in Finnish it would never occur to me call my friends “kulta”. There´s indeed a link between language and personality like Francois Grosjean Ph.D. stated in Psychology Today.
Another thing comes with the fluency of the language. One cannot really debate and justify his/her viewpoint if the vocabulary is limited. “Why not? – because!”