diff --git a/src/play.rs b/src/play.rs
index 56922c7..0232fe0 100644
--- a/src/play.rs
+++ b/src/play.rs
@@ -10,9 +10,25 @@ impl Plugin for PlayPlugin {
     }
 }
 
-fn rotate_cards(mut query: Query<&mut Transform, With<Card>>, time: Res<Time>) {
+#[derive(Component)]
+pub(crate) struct Selected;
+
+fn rotate_cards(mut query: Query<&mut Transform, (With<Card>, With<Selected>)>, time: Res<Time>) {
     let dt = time.delta().as_secs_f32();
     query.iter_mut().for_each(|mut t| {
         t.rotate_z(dt * 0.5);
     });
 }
+
+pub(crate) fn toggle_selected(
+    trigger: Trigger<Pointer<Click>>,
+    mut commands: Commands,
+    query: Query<&Selected>,
+) {
+    let e = trigger.entity();
+    if query.contains(e) {
+        commands.entity(e).remove::<Selected>();
+    } else {
+        commands.entity(e).insert(Selected);
+    }
+}
diff --git a/src/setup.rs b/src/setup.rs
index d39e8d2..037d05e 100644
--- a/src/setup.rs
+++ b/src/setup.rs
@@ -1,5 +1,5 @@
 use crate::{deck::*, *};
-use bevy::{prelude::*, sprite::AlphaMode2d};
+use bevy::prelude::*;
 
 pub struct SetupPlugin;
 
@@ -36,7 +36,8 @@ pub(crate) fn setup_cards(mut commands: Commands, deck: Res<Deck>) {
         commands
             .spawn((new_this, this_card, t))
             .observe(debug::set_debug_card)
-            .observe(debug::hide_debug_card);
+            .observe(debug::hide_debug_card)
+            .observe(play::toggle_selected);
     });
 }