What's wrong with my if statement?

index.html.erb

<% if micropost.to_guys == true %>
<li class="headshot"><%= image_tag("guys-head.png")%></li>
<%elsif%>
<li class="headshot"><%= image_tag("girl-head.png")%></li>
<%end%>

migration

class CreateMicroposts < ActiveRecord::Migration
  def change
    create_table :microposts do |t|
      t.boolean :to_guys
      t.string :content

      t.timestamps
    end
  end
end