Blue Chalk is more of a bar than a restruant, and fridays and saturday nights it's completely packed with stanford students trying to party the night away.
During the day, however, it is a full-service restrauant with a distinctively american fare. You can get burgers, sausages, pizza, chicken, and anything else you would find in a bar-turned-cafe venue.
At night, however, it becomes a pseduo-nightclub complete with bouncer checking drivers licenses. Inside is a DJ blasting bop-bop-bop-thump-bop tunes as well as several pool tables, shuffleboard, darts, and other bar-esque games.
There are 3 full bars: 2 downstairs and one upstairs that are often crowded at night with a 5-10 min wait to get drinks. Then again, that's what you expect for a psedo-hop bar next to a college campus.