“Tell me your thoughts” is a nice statement for couples to add to their repertoire. It represents interest and curiosity in your partner and encourages them to share. Sharing one’s thoughts, especially one’s innermost ones, is vulnerability in a relationship. 

However, when a partner shares their thoughts, it’s important to support your partner, even if their thoughts are different from yours. It’s important not to criticize, judge, or challenge since it makes it less likely your partner will share in the future.