u/rkalliar

Recently, I travelled abroad with a close friend. My sister lives in that country so I asked her to host me and my friend for 3 days. We saved a lot of money this way(no hotels etc).it was comfortable because my sister was leaving those days and the house was empty. But something that Im thinking is that my friend didn’t gave a present to me or my sister or offered to pay even for a coffee. Is that a valid worry?