I just witnessed a proposal at Bennigans, and here are some tips. Don't tell any of the servers. Or, if you do, put her in the corner where she can only see out, and not see reflections. This is why... by the time the guy was ready to propose, the whole place was standing as a crowd waiting for him to do it. Luckily she wasn't able to see the 50 people standing behind her, otherwise it would of ruined it.