The ambiance of OTB can't be beat. The inside is a little edgy with its bicycle theme, gears and bike parts abundant. Then you step outside and it is like you were transported to a Nicolas Sparks novel. Large wooden loungers to enjoy the view and a brew. (See what I did there), or a nice umbrella covered table to enjoy your meal as you watch eager fisherman standing on the side of the lake. We both had the Hot spicy chicken sandwich, which was just spicy enough and right out of the kitchen. Get the chips, the coleslaw was average, but the chips are fantastic. (Grab some ranch to dip)
As for attire, OTB is in the middle of North Park. There is a lot of athlesuire. I think it would be hard to be underdressed there. Choose a beautiful day and go sit on the deck, get there early because that is premium seating (as there are not many tables)