diff --git a/src/index.ts b/src/index.ts
index d764f93..d22695b 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -26,6 +26,11 @@ export const On = function<S,E extends EventShape>(eventName:E[0], ...reactions:
 export const Do = function(fn:DoFn_T) : Do_T{ return {type:'Do', fn}; };
 export const Goto = function<S>(targetStateName:S) : Goto_T<S> { return {type:'Goto', targetStateName} };
 
+interface Tick_T {
+  doFunctions: Array<DoFn_T>
+};
+const Tick = function(doFunctions : Array<DoFn_T>) : Tick_T{ return {doFunctions}; };
+
 
 export interface Interpreter_T<S,E extends EventShape,C> {
   machine: Machine_T<S,E>;
@@ -62,7 +67,21 @@ function getOns<S,E extends EventShape>(state : State_T<S,E>, event:E) : Array<O
 export function send<S,E extends EventShape,C>(interpreter : Interpreter_T<S,E,C>, event:E){
   const state = getState(interpreter);
   const ons = getOns(state, event);
-  ons.forEach
+  const tick = Tick(ons
+      .map((on)=>on.reactions)
+      .flat()
+      .map((reaction)=>{
+        if(reaction.type === 'Do'){
+          return reaction.fn;
+        }
+        else if(reaction.type === 'Goto'){
+          return (ctx,e,self)=>{};
+        }
+        else{
+          return (ctx,e,self)=>{};
+        }
+      })
+  );
 }
 
 export const Spawn = function(){};