I wonder whether your tremor could be your litmus test. Tell new acquaintances that you have a tremor and feel a bit self-conscious about it, but coffee sounds good. Then, depending on how comfortably they accommodate your emotional comfort, you could decide whether you’ve made a new friend or dodged a bullet. Easy does it for me when it comes to making friends. Not everyone is worth the investment of time and energy, especially for an introvert like me who likes her solitude. Good luck!!! (Sometimes finding a couple of writing buddies pays off in friendship too.)