diff --git a/src/entrypoint.rs b/src/entrypoint.rs
index a182bd9..223c00b 100644
--- a/src/entrypoint.rs
+++ b/src/entrypoint.rs
@@ -3,7 +3,7 @@ use clap::{App, Arg};
 pub fn main() {
     let matches = App::new("Emojifier")
         .version("1.0")
-        .author("Daniel T. <dtomlinson@panaetius.co.uk")
+        .author("Daniel T. <dtomlinson@panaetius.co.uk>")
         .about("Applies Emoji effects to text")
         .arg(
             Arg::new("input")
@@ -13,8 +13,18 @@ pub fn main() {
         )
         .arg(
             Arg::new("hands")
+                .short('H')
                 .long("hands")
+                .takes_value(false)
                 .about("TURNS 👏 YOUR 👏 TEXT 👏 INTO 👏 THIS"),
         )
         .get_matches();
+
+    if let Some(input) = matches.value_of("input") {
+        println!("{}", crate::hands::handify(input));
+    }
+
+    if matches.is_present("hands") {
+        println!("{}", true)
+    }
 }
diff --git a/src/hands.rs b/src/hands.rs
new file mode 100644
index 0000000..01d776a
--- /dev/null
+++ b/src/hands.rs
@@ -0,0 +1,22 @@
+pub fn handify(input: &str) -> String {
+    let input = input.to_uppercase();
+    let input = input.replace(" ", " 👏 ");
+    println!("{:?}", input.split_whitespace().collect::<Vec<&str>>());
+    input
+}
+
+#[test]
+fn handify_test_no_trailing_spaces() {
+    let input = "hello world";
+    assert_eq!(handify(input), "HELLO 👏 WORLD");
+}
+
+#[test]
+// NOTE: Failing because of trailing whitespace
+fn handify_test_with_trailing_spaces() {
+    let input = " hello world ";
+    assert_eq!(handify(input), "👏 HELLO 👏 WORLD 👏")
+}
+
+// TODO: trim leading + tailing white space
+// TODO: handle an empty string
diff --git a/src/lib.rs b/src/lib.rs
index 9b11663..9727e24 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1 +1,2 @@
-pub mod entrypoint;
\ No newline at end of file
+pub mod entrypoint;
+pub mod hands;