Monday. 8am-8pm
Tuesday. 8am-8pm
Wednesday. 8am-8pm
Thursday. 8am-8pm
Friday. 8am-2pm
Because you are creating a revision based on several articles, and those articles are based on specific research, you already have several places to start your research. Use the psychology databases to find information on the research done by Paul Ekman on facial features and emotions. You can use the general databases to find information about happiness and smiling in general to fill out your revisions.
Check out these databases for any information regarding psychology.
These databases are great to use for general searches to find high quality content. Consider also using some of the more precise databases if you are searching for a particular topic.