Translation of frivolous in Spanish

Good luck and success in this new job. Please tell Anna that this morning I had a great Capuchino coffee and I had to think of her. The aroma reminded me of our vacation in Northern Italy.
I have always met nice people so far, and I have never had a strange friends request. So far I only had problems with my grammar in various foreign languages that I am trying to acquire.
I attended a Spanish course in Malaga, but I need more practice and speak more often (and write of course). Here in Germany it is a bit difficult to learn Spanish because we do not have the chance to practice.