Depending on with whom I'm toasting and my mood, it's likely to be one of the following:

• Bottoms up!
• To those we love
• Long life and much love
• Now and hopefully soon again
• These are the best of times, my friends, for we drink together
• Better tomorrows
• Long live freedom
• Don't spill
• To cheap beer
• To good beer
• To good liquor
• To our livers