If you like interactive buttons you can use Beamer some control sequences like \beamergotobutton and \hypertarget. Run texdoc beamer and see "11.1 Adding Hyperlinks and Buttons".
On the other hand, instead of use image like icons, may be the fontawesome package could be useful, because the thumbs-up icon of this font is simpler, but you avoid messing with external images and you can use behind many other icons with a consistent style.
To illustrate this, in the example the buttons of the first slide go to the second or third slide, showing some more icons to show the look & feel of this font. (Compile it with xelatex or lualatex).

\documentclass{beamer}
\geometry{paperheight=1.5in,paperwidth=3.5in}
\usepackage{fontspec,fontawesome}
\usepackage{tikz}
\beamertemplatenavigationsymbolsempty
% custom buttom http://tex.stackexchange.com/a/108183/11604
\setbeamertemplate{button}{\tikz
\node[
inner xsep=2pt,
inner ysep=2pt,
draw=structure!40,
fill=structure!90,
rounded corners=4pt] {\insertbuttontext};}
\def\FBbutton{\raisebox{-.8ex}{\beamergotobutton{\normalsize\faHandRight}}}
\begin{document}
\begin{frame}
\frametitle{\faFacebookSign acebook post-injury testing}
\begin{itemize}
\item 1.7 billion \$
\only<1>{\hyperlink{wrong}{\FBbutton}}
\only<2>{{\textcolor{olive}{\faThumbsDown { \em porca miseria}}}}
\only<3>{{\alert{\faThumbsUp\ I'm not greedy}}}
\item 2.7 billion \$
\only<1>{\hyperlink{right}{\FBbutton} \textcolor{gray}{What is better?}}
\only<2>{\color{structure}\faThumbsUp\ %
\textcolor{black!40!green}{I liked \faMoney}}
\only<3>{\alert{\faThumbsDown\ not fit in the pocket}}
\end{itemize}
\hypertarget<2>{right}{\faThumbsUp\ %
\textcolor{structure}{Test passed. No neuronal damage.}}
\hypertarget<3>{wrong}{\alert{\faAmbulance\ }%
\textcolor{structure}{ Oh, my God!}}
\end{frame}
\end{document}