Hi Heather,

I agree with Hamster perhaps you are trying too hard.

Sometimes it might not be about your approach or your expressions.
Everyone loves a listener you may like to try some active listening, make eye contact (without staring at them) nod in agreement and repeat back what they have said in your own words so they feel heard.
Intuition is a powerful thing and if others feel your tension or needy vibes it can make people feel uncomfortable.

Try to relax, listen and just enjoy the moment.