Final answer:
A compound sentence can be created by using a coordinating conjunction to connect two independent clauses. An example with the provided sentences is: 'Harold is charismatic and funny, but he has a temper.'
Step-by-step explanation:
To create a compound sentence using the two given sentences, you can use a coordinating conjunction to join the two independent clauses. Since the sentences seem to contrast each other, the conjunction 'but' would be suitable. Here is an example:
'Harold is charismatic and funny, but he has a temper.'
This sentence combines the two independent clauses 'Harold is charismatic and funny' and 'He has a temper' into a single compound sentence, effectively contrasted by the conjunction 'but'.