I learned about love languages years ago when I attended a session sponsored by the Gratiot-Isabella Regional Education Service District (RESD). The lesson stuck with me over the years and knowing what the five love languages helped me to understand myself and those I love the most including my son with autism.
The languages were identified by Dr. Gary Chapman, an author on the subject of love and marriage. The five love languages are: words of affirmation, quality time, receiving gifts, acts of service, and physical touch. My guy with ASD appreciates words of affirmation, quality time and receiving gifts. Physical touch probably would rank at the bottom of his list as he really hasn't ever been much of a hugger though he tolerates it alright.
If you want to see what your love language is here is a link to a 30-question quiz. The best thing about this quiz is that you don't have to supply any emails or personal information to see the results. The results pop up right away with a brief explanation of how to interpret them.
P.S. As a parent, I found that praise in particular (which falls under words of affirmation category) goes along way with both of my sons. I find I feel better too, whenever I offer them positive, affirming words. Take care--jml.