Personally, I can be very shy, but once I get to know you, you'll find I am a very sassy person with a strong sarcastic streak, both when it comes to humor and how I complain. You will also find me to be fiercely loyal and giving to my friends. I also try to be there when I am needed, no matter what is involved, whether it is simply for a hug, a good meal while having someone to talk to, a late-night trip to the ER, or anything else.
I am also very passionate about what I do, and if you show any knowledge of the subject, I have an unfortunate tendency to keep talking about it far beyond the point I should stop. Conversely, I am generally extremely chill when it comes to pretty much anything else, and generally go with the flow, especially when it comes to spending free time. I've had a friend describe the dichotomy as "saving all the caring for when you need it," and I find that description rather apt.
If you put stock into the Myers-Brigg personality system, I am a INFJ.
I've found it useful to mention what I am looking for. First and foremost I am a looking for a friend. There does not need to be anything beyond that. In a dating relationship, I am looking for something substantial. I don't do hook-ups or flings. I want to get to know you and grow because of it for however long it lasts.