My approach is actually similar to that of the Sangha... I'll eat meat if it's given to me, but I won't request it or purchase it etc. My wife knows that my preference is vegetarian, but I don't expect her to go making separate meals just for me when she does the cooking. I also have a "well, you can't bring it back to life now" mentality when at barbecues, parties, functions, group dinners etc.
"Do not force others, including children, by any means whatsoever, to adopt your views, whether by authority, threat, money, propaganda, or even education." - Ven. Thich Nhat Hanh
"Whether I were to preach in brief, Sāriputta, or whether I were to preach in detail, Sāriputta, or whether I were to preach both in brief or in detail, Sāriputta, rare are those who understand." (A I 333, Sāriputtasutta)