Reverb Fest 2011 participants Groggy Bikini will perform at Capitol Hill’s Highline Bar tonight as part of Happy Hour for Hope.Seattle Weekly’s Happy Hour for Hope is a monthly networking event that raises money for local nonprofits, and tonight’s installment at Capitol Hill’s Highline Bar is in support of Flash Volunteer, an organization that “seeks to build community and increase volunteerism” in Seattle. The event also features a performance from local punk rockers and 2011 Reverb Festival participants Groggy Bikini. There is a $5 suggested donation, the cost of which includes entry into a raffle for giveaways like tickets to the EMP and Warren Miller’s “…Like There’s No Tomorrow.” Happy Hour for Hope takes place from 5:30 to 7:30 p.m.